Ravel went nuts in Tzigane at the end (7)
I believe the answer is:
entwine
'ravel' is the definition.
(I know that ravel is a more specific form of the action entwine)
'went nuts in tzigane at the end' is the wordplay.
'nuts' is an anagram indicator (nuts can mean crazy).
'at the end' says to take the final letters.
The final letter of 'tzigane' is 'e'.
'went' anagrammed gives 'entw'.
'entw'+'in'+'e'='ENTWINE'
(Other definitions for entwine that I've seen before include "Interweave" , "Lace" , "Get weaving" , "Weave - interlace" , "Braid" .)