Puzzletome Crossword Puzzles

August 2024 Monthly Crossword
X and Y

Each of 4 intersecting pairs of entries are of the form X and Y. Clues for these have X and Y swapped, and are given without definition. The good news is that the *answers* to the 4 asterisked clues (also clued without definition) are themselves definitions for the X and Y pairs.
Grid
Across
1 Threesome keeping noise up (6)
4 Rely on them to break law in initiation (8)
10 Present popular street worker (7)
11 Beer swallowed (four) (7)
12 Two singles groping emperor's final son (a bit of a looker) (4)
13 Throaty, angry outburst after quiet cure (10)
15 American vessel gets amateur republican representation (6)
16 * Insect in dock (7)
20 * Calculate runway borders (7)
21Land of nostalgia is surely regressive to some extent (6)
24 Can court intervening in old small charge cause death? (10)
26 Character building eventually leads to thanks (4)
28 Burn carbon and hydrogen (7)
29 I get in to incur charges - of hundreds or thousands, say? (7)
30 Kind of hard to reduce guns? (8)
31 Clan base under attack (6)
Down
1 Excessively grabbing container (8)
2 Baton aids swimming to beat soles (9)
3 Costume change area partially hidden (4)
5 Establish revenue base (4,4)
6 Immoral - half like money promises (10)
7 Thrill with gin cocktail (5)
8 * Openers / tailender out getting leg break (6)
9 Prickly heat beginning to infiltrate city bounds (5)
14 It's launched for music dance around November (10)
17 Set up in crib to experiment for this study? (9)
18 Troubles suppressing head of race relations (8)
19 Head cook mostly cooks without eggs (8)
22 About to put down (6)
23 * In a particular manner and German (5)
25 Reduce recording rudimentary record (5)
27 Indian nurse with morning realisation? (4)