Cannot work out the following:
17A I’d like to sleep easy after a massage (3,6)
16D Embarrassing when ghastly performer appears in chorus (7)
23D At the outset, straining posterior muscle produces an amusing noise (5)
26A The aged are welcomed into German band (6)
Realise that’s rather a lot of clues but just cannot get my head into today’s crossword. Any help appreciated. TIA, E