Brown, in fancy tins, like some coffee (7)
I believe the answer is:
instant
'like some coffee' is the definition.
(as in instant coffee)
'brown in fancy tins' is the wordplay.
'brown' becomes 'tan' (tan is a kind of brown).
'in' means one lot of letters goes inside another.
'fancy' indicates an anagram.
'tins' with letters rearranged gives 'inst'.
'tan' inserted inside 'inst' is 'INSTANT'.
(Other definitions for instant that I've seen before include "Sort of coffee" , "Second - point in time" , "Precise moment" , "Fast, flash" , "Occurring immediately, like some fast food" .)