The clue may contain an extra word:
22a Choreographer to finish including repeated character in ballet (5) ??LIN
25a Constituent tense after three consecutive letters? (6) EL??EN looks like eleven ??
3d Supremely cunning to persuade saint about ultimate in evil, surely (6) ... think it's slyest - can see ST = saint ... persuade = yes ?? ... y from last letter of surely ... ??