Form of poem (7)
I believe the answer is:
rondeau
'form of poem' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for rondeau that I've seen before include "Type of poem" , "Short lyrical poem" , "Short poem with only two rhymes and opening words used twice as refrain" , "... and another" , "Sort of poem" .)