Stove popular once more? (5)
I believe the answer is:
again
'once more?' is the definition.
(I've seen this before)
'stove popular' is the wordplay.
'stove' becomes 'aga' (I've seen this before).
'popular' becomes 'in'.
'aga'+'in'='AGAIN'
(Other definitions for again that I've seen before include "return" , "Repeatedly" , "Not for the first time" , "second term" , "'Another time, once more (5)'" .)