Red as clarets maybe (7)
I believe the answer is:
scarlet
'red' is the definition.
(scarlet is a kind of red)
'clarets maybe' is the wordplay.
'maybe' is an anagram indicator.
'clarets' anagrammed gives 'SCARLET'.
'as' is the link.
(Other definitions for scarlet that I've seen before include "Murderer" , "Vivid red" , "Fallen" , "Bright red of clarets" , "Crimson" .)