Limit volume and turn over (7)
I believe the answer is:
capsize
'turn over' is the definition.
(synonyms)
'limit volume' is the wordplay.
'limit' becomes 'cap' (capping is a kind of limiting).
'volume' becomes 'size' (I've seen this before).
'cap'+'size'='CAPSIZE'
'and' acts as a link.
(Other definitions for capsize that I've seen before include "Overturn (a boat)" , "Upset" , "Turn so that keel faces upwards" , "Of boat, turn turtle" .)