Sandy color (3)
(Other definitions for tan that I've seen before include "Lightish brown colour" , "Nice brown induced by sun" , "Turn hide into leather" , "Go brown" , "Healthy sun-burned colour" .)
'sandy color' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for beige that I've seen before include "Fawn-coloured" , "Pale brown" , "Light brown" , "Fawn or buff" , "Pale sandy fawn colour" .)