Visitor frequently wants a short time in shade (7)
I believe the answer is:
habitue
'visitor frequently' is the definition.
(someone who often visits a particular place)
'a short time in shade' is the wordplay.
'short time' becomes 'bit' (bit is a kind of short time).
'in' is an insertion indicator.
'shade' becomes 'hue' (both can mean a colour).
'a'+'bit'='abit'
'abit' placed within 'hue' is 'HABITUE'.
'wants' acts as a link.
(Other definitions for habitue that I've seen before include "Regular visitor (to place)" , "Person who visits a place frequently, may live there" , "One who visits a place frequently 97)" , "Regular attendant" , "Constant visitor" .)