... it is featured in retro street musical (5)
I believe the answer is:
evita
'musical' is the definition.
(I've seen this before)
'it is featured in retro street' is the wordplay.
'is featured in' is an insertion indicator.
'retro' says the letters should be written in reverse (retro is Latin for 'backwards').
'street' becomes 'ave' (abbreviation for Avenue).
'ave' written backwards gives 'eva'.
'it' put inside 'eva' is 'EVITA'.
(Other definitions for evita that I've seen before include "Andrew Lloyd Webber musical set in Argentina" , "Eva Peron" , "Well-known musical" , "Stage musical" , "1978 Lloyd Webber musical" .)