Spruce, natty (6)
I believe the answer is:
dapper
This clue is a double definition.
'spruce' is the first definition.
(I know that spruce can be written as dapper)
'natty' is the second definition.
(I know that natty can be written as dapper)
(Other definitions for dapper that I've seen before include "Natty, spruce" , "Of man, neat and smart" , "Smartly dressed" , "Natty, dashing" , "Spruce in bearing" .)