Range is fashionable once more (5)
I believe the answer is:
again
'once more' is the definition.
(synonyms)
'range is fashionable' is the wordplay.
'range' becomes 'aga' (type of cooking range).
'is fashionable' becomes 'in' (in can mean fashionable or trendy).
'aga'+'in'='AGAIN'
(Other definitions for again that I've seen before include "Furthermore" , "Anew" , "10 10 [AGAIN" , "Repeatedly" , "return" .)