Meatiest stews producing round figure? (8)
I believe the answer is:
estimate
'round figure?' is the definition.
'meatiest stews' is the wordplay.
'stews' is an anagram indicator.
'meatiest' is an anagram of 'ESTIMATE'.
'producing' is the link.
(Other definitions for estimate that I've seen before include "Make an approximate assessment" , "Calculate in approximate way" , "Judge to be probable" , "Tease Tim (anag.)" , "Quotation" .)