Tree with a red variety (5)
I believe the answer is:
alder
'tree with a red variety' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for alder that I've seen before include "One [TYPE OF TREE]" , "Artificial fishing fly" , "North temperate tree with cone-like fruit" , "Shrub or tree with cone-like fruits" , "Tree growing in damp ground" .)