Cooking range that's popular once more (5)
I believe the answer is:
again
'once more' is the definition.
(synonyms)
'cooking range that's popular' is the wordplay.
'cooking range' becomes 'aga' (I've seen this before).
'that's popular' becomes 'in' ('in' can mean trendy).
'aga'+'in'='AGAIN'
(Other definitions for again that I've seen before include "Furthermore" , "10 10 [AGAIN" , "Here we go ___" , "Next time" , "Repeatedly" .)