Across
See 9
See 18
1a
Wonderful vision, what might temporarily blind an officer? (5-7)
Reportedly something through which little dog jumps, experiencing such fun? (4-1-4)
Searching on the ground floor as unlawful? (2,3,5)
I haven't cracked this one yet — but Fifteensquared have:
unl awful is split into unl / awful anagram ( awful ) of (floor as unl )
Emperor is some leader as tyrannical, in retrospect (4)
Issue dipping into onion soup that's suspicious — good to eat? (3-9)
I haven't cracked this one yet — but Fifteensquared have:
SON=”Issue” as in offspring; inside anagram/”suspicious” of (onion soup)*
5a
What's Gabon without love? It's totally unacceptable! (5,4,3,2,5)
See 28
Reigning cats and dogs back in pluvial part of Australia (10)
I haven't cracked this one yet — but Fifteensquared have:
QUEENS=”cats”, plus AND which follows/”dogs” the back letter in pluvia-L QUEENS are adult female cats – not sure if “Reigning” is attached to this idea, or if it is a secondary hint towards the word QUEENS
A smile and a wink, say, from crooked economist (9)
I haven't cracked this one yet — but Fifteensquared have:
anagram/”crooked” of (economist)*
Cool fool, don't ya agree? (5)
Cuckoo learnt to peck end off chocolate digestive (7)
I haven't cracked this one yet — but Fifteensquared have:
definition: relating to the intestine anagram (“Cuckoo” as in ‘insane’) of (learnt)*; around (“peck” as in eating) the end of chocolat-E
21a
Period remains connected with battle for a frightening number from the ’6os (7,4)
Down
Mattress up on rock, poor thing? (6)
Olympian has dropped American underwear, plain lot in black and white (6)
One's drunk at a formal occasion, so totally sozzled having quaffed last of tequila (5,5)
I haven't cracked this one yet — but Fifteensquared have:
definition: a toast to the sovereign of one’s country anagram/”sozzled” of (so totally)*, around last of tequil-A
Playing field's to one side (5)
Case of cryptic penned by syndicate of Guardian crossword setters arising (9)
I haven't cracked this one yet — but Fifteensquared have:
outer letters (“Case”) of C-rypti-C, inside OUR RING=”syndicate of Guardian crossword setters [including Paul / from Paul’s perspective]”
Country lady wiping brow (4)
I haven't cracked this one yet — but Fifteensquared have:
w-OMAN=”lady”, without the top letter (“brow”)
Tennis tactic where ingenious prods desirable (4-4)
Put it another way, agent needs free share (8)
So unable to answer with some certainty (2,8)
I haven't cracked this one yet — but Fifteensquared have:
someone might be unable to answer if they are given no question
Frying liquid, reverberating sound around fan, I say! (6,3)
I haven't cracked this one yet — but Fifteensquared have:
PEAL=”reverberating sound”, around NUT (enthusiast, “fan”) plus OI (exclamation of protest or annoyance, “I say!”)
Dash marked with initial of engraver (8)
I haven't cracked this one yet — but Fifteensquared have:
STAMPED=”marked” plus initial of E-ngraver
Document in hand, left (8)
Bird has knocked figure on horse over (6)
I haven't cracked this one yet — but Fifteensquared have:
TEN=number=”figure” + NAG=”horse”; all reversed (“knocked… over”)
Tired and old battered Guardian employee? (6)
Classic location with English rider on order (5)
I haven't cracked this one yet — but Fifteensquared have:
definition: location of ‘Classic’ horse races E (English) + PS (post script; a “rider” is an added clause to e.g. a contract) + OM (Order of Merit)
Roman god, King Christian, say (4)
Type letters or click words in the clue