Tolerate second coat amid very warm easterly (7)
I believe the answer is:
stomach
'tolerate' is the definition.
(I know that tolerate can be written as stomach)
'second coat amid very warm easterly' is the wordplay.
'second' becomes 's' (common abbreviation).
'coat' becomes 'mac' (mac is a kind of coat).
'amid' means one lot of letters goes inside another.
'very warm' becomes 'hot' (I've seen this before).
'easterly' is a reversal indicator (the word seen from the right or \'east\').
'hot' written backwards gives 'toh'.
'mac' placed within 'toh' is 'tomach'.
's'+'tomach'='STOMACH'
(Other definitions for stomach that I've seen before include "Internal organ" , "Bear - belly" , "Courage - guts" , "Bag-like part of the alimentary canal" , "Belly - tolerate!" .)