No wild-eyed hot revolutionary! (4-2-3-4)
I believe the answer is:
dyed-in-the-wool
'no wild-eyed hot revolutionary' is the definition.
Both the answer and definition are adjectives. Perhaps you can see a link between them that I don't see?
'no wild-eyed hot revolutionary' is the wordplay.
'revolutionary' is an anagram indicator.
'no'+'wild'+'eyed'+'hot'='nowildeyedhot'
'nowildeyedhot' anagrammed gives 'DYED-IN-THE-WOOL'.
Can you help me to learn more?
(Other definitions for dyed-in-the-wool that I've seen before include "Fixed and uncompromising" , "Unchanging in a particular belief" , "Unchangeable in opinions" , "Inveterate - they do lie down (anag)" , "Of firmly fixed opinions" .)