Don Juan to gather leaves (4)
I believe the answer is:
rake
This clue is a double definition.
'don juan' is the first definition.
(I've seen this in another clue)
'gather leaves' is the second definition.
(I've seen this in another clue)
'to' acts as a link.
(Other definitions for rake that I've seen before include "Inclination - dissolute man" , "Debauchee" , "Scraper - womaniser" , "incline to > scratch" , "Progress was visualised for one" .)