Boiling innkeeper's coat put away (5)
I believe the answer is:
irate
'boiling' is the definition.
(I've seen this before)
'innkeeper's coat put away' is the wordplay.
'coat' suggests removing the centre (only the letters which coat the word are used).
'put away' becomes 'ate' (put away can mean to eat).
'innkeeper' with its centre removed is 'ir'.
'ir'+'ate'='IRATE'
(Other definitions for irate that I've seen before include "become irritated" , "A tier (anag)" , "Annoyed, nettled" , "Cross, irritated" , "Extremely cross" .)