Bananarama's "___ Summer" (5)
I believe the answer is:
cruel
'bananarama's summer' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cruel that I've seen before include "Ulcer (anag)" , "Merciless" , "Vicious" , "Unfeelingly hard" , "Inflicting pain and feeling no concern" .)