Very much out of shape (5)
I believe the answer is:
heaps
'very much' is the definition.
(synonyms)
'of shape' is the wordplay.
'of' indicates an anagram (the answer comes from or 'of' the letters).
'shape' is an anagram of 'HEAPS'.
'out' is the link.
(Other definitions for heaps that I've seen before include "Lots (of piles?)" , "Mounds; lots" , "A large number; untidy mounds" , "Shape (anag) - lots" , "Mounds, stacks" .)