Across
1 Across Complaints over awkward B fees (5) → BEEFS Anagram
Anagram of “B fees”.
4 Across Repel found among acre pulses (7) → REPULSE Hidden word
Hidden inside “acre pulses”.
8 Across A sprite's territory, magical realm (9) → FAIRYLAND Charade
FAIRY + LAND.
10 Across Old space station, edge in reverse (3) → MIR Reversal
RIM reversed.
11 Across Small fruit atop a rock, hard-shelled clam (11) → CHERRYSTONE Charade
CHERRY + STONE.
13 Across Utopia, or sleep (9) → DREAMLAND Double definition
Two separate definitions of the same word.
16 Across Satirical portraits, an accurate sir gone wrong (11) → CARICATURES Anagram
Anagram of “accurate sir”.
20 Across Salesman, first letters of rude embassy party (3) → REP Initialism
First letters of: rude, embassy, party.
21 Across Limbo, or sheer torment (9) → PURGATORY Double definition
Two separate definitions of the same word.
22 Across Epic voyage from spilled soy dyes (7) → ODYSSEY Anagram
Anagram of “soy dyes”.
23 Across Seen dye or, alternately, is the Passover meal (5) → SEDER Alternate letters
Every other letter of “seen dye or”, starting with the first.
Down
1 Down Fans at heart of abs, sun, off, ifs and ask (5) → BUFFS Middle letters
Middle letters of: abs, sun, off, ifs, ask.
2 Down Broken vice den revealed (7) → EVINCED Anagram
Anagram of “vice den”.
3 Down Flair concealed in dusty legend (5) → STYLE Hidden word
Hidden inside “dusty legend”.
5 Down Seed case, founded, one is an old Italian magistrate (7) → PODESTA Charade
POD + EST + A.
6 Down Note held inside a limo is a Caribbean dance (5) → LIMBO Container
B inside LIMO.
7 Down Small, re north Rae, sent back are breadwinners (7) → EARNERS Reversal
S RE N RAE reversed.
9 Down Meteor era, disturbed, creates an air-density gauge (9) → AEROMETER Anagram
Anagram of “meteor era”.
12 Down Come to mind, hidden in reverse within pilot ruccola (5,2) → OCCUR TO Hidden backwards
Hidden backwards inside “pilot ruccola”.
14 Down Paces SE wildly, breaks free (7) → ESCAPES Anagram
Anagram of “paces SE”.
15 Down Insult, then a rope, brings conflict (7) → DISCORD Charade
DIS + CORD.
17 Down First off, rich elderly patrons always yearn to settle a debt (5) → REPAY Initialism
First letters of: Rich, Elderly, Patrons, Always, Yearn.
18 Down Loud cries from riot acres, alternately (5) → ROARS Alternate letters
Every other letter of “riot acres”, starting with the first.
19 Down Aviator at heart of offer, old dye, bet and art (5) → FLYER Middle letters
Middle letters of: offer, old, dye, bet, art.