Color similar to beige (4)
'color similar to beige' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tan that I've seen before include "Convert hide to leather" , "Lie in sun" , "Sun-baked colour" , "Brownish colour" , "Sun-kissed" .)
(Other definitions for ecru that I've seen before include "Shade of unbleached linen" , "Light fawn colour" , "Find a cure, strangely, in the colour" , "off-white" , "Neutral colour" .)