Cherry pit allowed (7)
I believe the answer is:
scarlet
'cherry' is the definition.
(I know that cherry can be written as scarlet)
'pit allowed' is the wordplay.
'pit' becomes 'scar' (synonyms).
'allowed' becomes 'let' (to let is to allow or permit).
'scar'+'let'='SCARLET'
(Other definitions for scarlet that I've seen before include "bloody?" , "Cartels (anag.)" , "Bright red of clarets" , "Murderer" , "Fallen" .)