Part of plant left among trees after spades stolen (6)
I believe the answer is:
floret
'among trees after spades stolen' is the definition.
I can't tell whether this defines the answer.
'part of plant left' is the wordplay.
'part' becomes 'te' (te is a kind of part).
'of plant' becomes 'rolf' (I can't explain this - if you can you should believe this answer much more).
'left' shows that the letters should be reversed in order.
'te'+'rolf'='terolf'
'terolf' reversed gives 'FLORET'.
Can you help me to learn more?
(Other definitions for floret that I've seen before include "Small flower" , "Piece of broccoli" , "Part of a cauliflower or broccoli head" , "Broccoli stem" , "Part of cauli head" .)