Ferocious marine syndicate (7)
I believe the answer is:
searing
'ferocious' is the definition.
The answer and definition are not the same part of speech.
'marine syndicate' is the wordplay.
'marine' becomes 'sea' (both can mean 'of the sea').
'syndicate' becomes 'ring' (I've seen this in other clues).
'sea'+'ring'='SEARING'
Can you help me to learn more?
(Other definitions for searing that I've seen before include "An aromatic liquid; aumbry (anag.)" , "Scorching" .)