ACROSS
 7. <conspicuous> INDISCREET = IRIDESCENT*
 9. <subscription money> DUES = USED*
10. <ability to memorise> RECALL = CELLAR*
11. PARTISAN* = ASPIRANT <ambitious character>
12. <hairstyle> AFRO = FORA*
14. TERMINATES* = MAIN STREET <somewhere downtown>
16. <yokel> RUSTIC = CITRUS*
17. ARTIST* = STRAIT <offshore region>
19. <impact> PERCUSSION = SUPERSONIC*
22. LOUD* = LUDO <board game>
23. (REAL-TIME)* = MATERIEL <munitions>
25. BUSTLE* = SUBLET <to get additional tenant>
27. <reminder of wound> SCAR = ARCS*
28. <where to get e.g. tart> PATISSERIE = ASPERITIES*

DOWN
 1. KEEN* = KNEE <joint>
 2. SPORADIC* = PICADORS <bull-fighters>
 3. ALPINE* = NEPALI <language of mountainous country>
 4. OPTS* = STOP <bar>
 5. <devoted fan> ADORER = ROARED*
 6. <made up again> REINVENTED = INTERVENED*
 8. <false statements> CALUMNIES = MASCULINE*
13. FREELANCED* = FER-DE-LANCE <ambusher>
15. <devil-worshippers> SATANISTS = ASSISTANT*
18. <improvised> AD-LIBBED = BIDDABLE*
20. SCLERA* = CLEARS <becomes transparent>
21. SLIEST* = ISLETS <keys?>
24. YIPS* = I-SPY <children's activity>
26. <throw out> EMIT = ITEM*