Across
Performing twice in Tosca is stimulating for a soloist? (9)
I haven't cracked this one yet — but Fifteensquared have:
Anagram of ( Performing ) [ 2 x ( twice ) IN + TOSCA ].
Refurbished loo contains very old moulding (5)
I haven't cracked this one yet — but Fifteensquared have:
Anagram of ( Refurbished ) LOO containing ( contains ) [ V(abbrev. for “very”) + O(abbrev. for “old”) ].
Demanding person from Oldham needing a break? (7)
African fish's name maybe grasped by sailors (7)
Conservative going kind of pink, concerned with speech (4)
I haven't cracked this one yet — but Fifteensquared have:
C(abbrev. for a member of the Conservative Party) deleted from ( going ) “coral”(a shade/kind of pink colour).
Person grilling odd sandwiches is not out to lunch (10)
What reprobates do after some tobacco's in pocket (5,2)
Boxing a long time, clobber despicable people (7)
Establishing distance from two directions before time rambling (10)
I haven't cracked this one yet — but Fifteensquared have:
E,S(abbrev. for two directions, east and south respectively) plus ( before ) T(abbrev. “time”) + RANGING(rambling/spreading in different directions).
Cash returns for Jack, say (4)
Invest and invest, investing reserve (5-2)
Liking less parking in transport (7)
I haven't cracked this one yet — but Fifteensquared have:
“penchant”(a liking/an inclination to) minus ( less ) “p”(abbrev. for “parking”).
Plain Welsh seaside resort, no northern dud (5)
I haven't cracked this one yet — but Fifteensquared have:
“Llandudno”(a seaside resort in Wales) minus ( no ) “dud”.
Screen star in a period of abstention cutting alcohol (9)
I haven't cracked this one yet — but Fifteensquared have:
[ A + LENT(a period of abstention for Christians) ] contained in ( cutting ) VINO(alcohol, specifically, wine).
Down
Passion dominates game, we hear, in pointless tennis position (4,8,3)
I haven't cracked this one yet — but Fifteensquared have:
[ LOVE ALL](the score/position in a tennis match when neither side has scored a point/is pointless) containing ( …, in … ) homophone of ( …, we hear ) “conkers”(a children’s game played with conkers, nuts of the horse chestnut tree).
Spy Indian princess rejecting article without thanks (4,4)
I haven't cracked this one yet — but Fifteensquared have:
“maharani”(an Indian ruling princess) minus ( rejecting ) “an”(article in grammar) containing ( without ) TA(short for thank you/thanks).
One showing Mary pastry case from trattoria (5)
Opener gets run out in captivating draw (4,4)
Many runs perhaps in Twenty20? (6)
I haven't cracked this one yet — but Fifteensquared have:
SCORES( Twenty and 20 ), Twenty20 being a format of cricket, in which, of course, runs are scored.
Shrewder retaining ball, male player (9)
I haven't cracked this one yet — but Fifteensquared have:
WISER(shrewder/smarter) containing ( retaining ) [ O(letter shaped like a ball) + MAN(a male) ].
Thoroughly soppy git by place of retreat (6)
Blunt answer's received about legislative measure (5,10)
Take in various keys, say, and polish roughly (6-3)
I haven't cracked this one yet — but Fifteensquared have:
A0( … roughly ) AND POLISH .
Gaudy little skirts are popular with consumers (8)
One nameless dreamer with a bouquet (8)
I haven't cracked this one yet — but Fifteensquared have:
A(one/a single) + “romantic”(a dreamer/one with idealised views of reality) minus ( …less ) “n”(abbrev. for “name”).
Revolutionary Communist wears brown, without exception (2,1,3)
I haven't cracked this one yet — but Fifteensquared have:
Reversal of ( Revolutionary ) MAO(Zedong, Chinese Communist) contained in ( wears ) TAN(a brownish colour).
Banking centre, say, raised what's held in Russian banks (6)
Son has ice cream or small cake (5)
Type letters or click words in the clue