South supported by Confederate girl (5)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

Cha of S (south) ALLY (confederate) 4 ARRAS ARRAN (Scottish island) substituting S (south) for N (north) indicated by changing course ; rich tapestry (as formerly made at Arras in France); a hanging screen of tapestry for a wall. 5 EXCHEQUER EX (old) CHEQUER (sounds like checker of financial statements, aka auditor like Uncle Yap was for many years with Coopers and PW years ago) 6 TOY POODLE TOY (play) Ins of D (first letter of Dalmatian) in POOL (game) + E energy) Toy Poodles are bred for their miniature size 7 ENTRY GENTRY (well-bred people) minus first letter 8 AT THE SAME TIME An excellent dd 9 ALBERT HERRING Cha of ALBERT (Queen Victoria’s husband) HER RING (band) a comic chamber opera in three acts by Benjamin Britten 15 URUGUAYAN Reversal of NAY (No) A U (university) GURU (teacher) I like the surface; very creative charade 16 COMPOUNDS COM ( rev of MOCK, false minus K) POUNDS (money) 17 TAIL-ENDER Ins of AIL (trouble) in TENDER (sore) In cricket, the last batsman to get on after the loss of nine wickets 21 ROGUE Allusion to rogue elephant ( a term for a lone, violently aggressive wild elephant) and rogues’ gallery (police collection of photographs of criminals, convicts and the usual suspects) 22 SISAL ha 23 BILLY dd a cylindrical container with a wire handle and lid for boiling water. Also billy goat to denote a male goat Key to abbreviations dd = double definition tichy = tongue-in-cheek type cd = cryptic definition rev = reversed or reversal ins = insertion cha = charade ha = hidden answer *(fodder) = anagram