Pale red (4)
I believe the answer is:
pink
'pale red' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pink that I've seen before include "stab" , "See 21" , "Comedy films involving a diamond, Inspector Clouseau and Peter Sellers" , "(Shade of) flower" , "Colour; herbaceous plant" .)