Cold and brisk (5)
I believe the answer is:
nippy
This clue is a double definition.
'cold' is the first definition.
(similar in meaning)
'brisk' is the second definition.
(I've seen this in another clue)
'and' acts as a link.
(Other definitions for nippy that I've seen before include "Quick; chilly" , "Quickly-moving" , "Fast - cold" , "Slightly cold?" , "brisk" .)