28a For audience, sardonic singer may provide stock fare (3-5) R - E - R S - Looks like RYE-GRASS
17d Something other than static often heard on Classic FM (8) - O - E - E - T MOVEMENT?
11a Anticipate having pope's cwown given back? - - A - T Looks like AWAIT. if 'W' isn't a misprint
6d English excluded from jointly-owned remnant after break-up (5) S - - - D
Thanks.