Colour; tanned (5)
I believe the answer is:
brown
This clue is a double definition.
'colour' is the first definition.
(brown is a colour)
'tanned' is the second definition.
(I've seen this before)
(Other definitions for brown that I've seen before include "Colour; ex-PM" , "Rugby hero" , "Colour of earth" , "Colour (of the PM?)" , "Dark - tanned - successor to Blair?" .)