Across
Sailor showing snake, beginning of nasty atmosphere aboard (7)
I haven't cracked this one yet — but Fifteensquared have:
An envelope (‘aboard’) of ATM (‘atmosphere’) in BOA (‘snake’) plus N (‘beginning of N asty’).
Midlander starting to bet before card game announced (7)
I haven't cracked this one yet — but Fifteensquared have:
A charade of B (‘starting to B et’) plus RUMMIE, sounding like (‘announced’) RUMMY (‘card game’).
Revered person from Honolulu appeared to be retiring (4)
Qualification is incomplete, elite dancer miserable (10)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (‘niserable’) of ‘elit[e]’ minus its last letter (‘incomplete’) plus ‘dancer’.
God's love commonly recalled about noon (6)
I haven't cracked this one yet — but Fifteensquared have:
A charade of VUL, a reversal (recaled’) of LUV (‘love commonly’) plus C A (‘about’) plus N (‘noon’).
Key (B not A, then E) going to pot (8)
I haven't cracked this one yet — but Fifteensquared have:
A charade of CRUCI[a]L (‘key’) with the A replaced by B (‘B not A’) plus (‘then’) ‘E’.
Dance with one chorus is bright (9)
Fruit starter of gooseberry and pear salad (5)
I haven't cracked this one yet — but Fifteensquared have:
A charade of G (‘starter of G ooseberry’) plus RAPE, an anagram (‘salad’) of ‘pear’.
Abbreviated exchange about power walk (5)
I haven't cracked this one yet — but Fifteensquared have:
A charade of TRAM, a reversal (‘about’) of MART (market, ‘abbreviated exchange’) plus P (‘power’).
Different English phone box is one that's not foreigner-friendly (9)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (‘different’) of E (‘English’) plus ‘phone box’.
Rogue told to choose a new jumper for collection (8)
I haven't cracked this one yet — but Fifteensquared have:
An envelope (‘for collection’) of ROO (kanga, ‘jumper’) in PIC, sounding like (‘told’) PICK (‘choose’) plus ‘a’ plus N (‘new’)
Spice Girls' opening after enthusiastic follower makes entrance, initially (6)
I haven't cracked this one yet — but Fifteensquared have:
A charade of NUT (‘enthusiastic follower’) plus M E (‘ M akes E ntrance initially’) plus G (‘ G irls opening’).
One who may file patent leather shoe at last takes on first concession around (10)
I haven't cracked this one yet — but Fifteensquared have:
A charade of R E (‘leathe R sho E at last’) plus (‘takes on’) GISTRANT, an envelope (‘around’) of IST (1st. ‘first’) in GRANT (‘concessiuon’).
Robin, perhaps, returning prize to king (4)
Staggered retreat with fanatics turning back (7)
I haven't cracked this one yet — but Fifteensquared have:
A reversal (‘turning back’) of DEN (‘retreat’) plus NUTS (‘fanatics’).
Saint having something for breakfast, sandwiches run out (7)
Down
Queen involved in enigmatic opera that's more impenetrable (7)
The Madrileño blocking, twitching and moving towards goal (5)
Marks account with small amounts of money (7)
One of a troop rushes about (6)
Mother briefly courts 17 outside (9)
I haven't cracked this one yet — but Fifteensquared have:
An envelope (‘outside’) of ATRIA A TRI[a] (plural of atrium, ‘courts’) minus its last letter (‘briefly’) in MARCH (’17’, the clue with answer TRAMP).
Agitated one with short pants to wrap (2,1,4)
I haven't cracked this one yet — but Fifteensquared have:
A charade of I (‘one’) plus NAF[f] (worthless, ‘pants’) minus the last letter (‘short’) plus LAP (‘wrap’).
Criminal let in entrance for a significant anniversary (13)
7 held up claw of cat perhaps (9)
One crew entertained by sailor having returned dress (7)
I haven't cracked this one yet — but Fifteensquared have:
An envelope (‘entertained by’) of I (‘one’) plus MEN (‘crew’) in RAT, a reversal (‘having returned’) of TAR (‘sailor’).
Massage to rear end of pigeon fancier (7)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (‘massage’) of ‘to rear’ plus N (‘end of pigeo N ‘).
Rock band at first visits sports area with spies (7)
I haven't cracked this one yet — but Fifteensquared have:
A charade of B (‘ B and at first’) plus (‘visits’) REC (‘sports area’) plus CIA (‘spies’).
What baby might need is courage (6)
Easy score, at a pinch included (3-2)
Type letters or click words in the clue