Rewrite meatiest quotation (8)
I believe the answer is:
estimate
'quotation' is the definition.
(I've seen this before)
'rewrite meatiest' is the wordplay.
'rewrite' indicates an anagram.
'meatiest' with letters rearranged gives 'ESTIMATE'.
(Other definitions for estimate that I've seen before include "Statement giving the likely cost of a job" , "Evaluate - approximation" , "Approximate calculation" , "Judgement of approximate value or size" , "rough judgment" .)