Chum plastered chicken with warning that's breathtaking (10)
I believe the answer is:
phenomenal
'breathtaking' is the definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I can't see?
'chum plastered chicken with warning' is the wordplay.
I cannot really see how this works, but
'chicken' could be 'hen' (hen is a kind of chicken) and 'hen' is present in the answer.
'warning' could be 'omen' (I've seen this in another clue) and 'omen' is located in the answer.
'chum' could be 'pal' (both can mean a friend) and 'pal' is located in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'that's' is the link.
Can you help me to learn more?
(Other definitions for phenomenal that I've seen before include "Mind-blowing" , "Incredible" , "Unusual" , "Extraordinary - help one man (anag)" , "Amazing" .)