Pale as a female with no love lost (5)
I believe the answer is:
ashen
'pale' is the definition.
('ashen' can be a synonym of 'pale')
'a female with no love lost' is the wordplay.
'female' becomes 'she' (I've seen this before**).
'with' says to put letters next to each other.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'lost' indicates named letters should be taken away.
'no' with 'o' taken away is 'n'.
'a'+'she'+'n'='ASHEN'
'as' is the link.
(Other definitions for ashen that I've seen before include "Visibly shocked" , "Looking pale from illness" , "Unhealthily pale" , "Pale-faced" , "showing signs of anaemia" .)