Supposed place to have musical brought back (8)
I believe the answer is:
putative
'supposed' is the definition.
(synonyms)
'place to have musical brought back' is the wordplay.
'place' becomes 'put' (synonyms).
'to have' is a charade indicator (letters next to each other).
'musical' becomes 'evita' (Andrew Lloyd Webber musical).
'brought back' says the letters should be written backwards.
'evita' in reverse letter order is 'ative'.
'put'+'ative'='PUTATIVE'
(Other definitions for putative that I've seen before include "Generally considered or reputed to be" , "Supposed, generally considered such" , "Supposed or reputed" , "Supposed - tie up vat (anag)" , "Supposed or thought to be" .)