Stimulate in garden plot - put forth shoots (9)
I believe the answer is:
burgeoned
'plot put forth shoots' is the definition.
I can't tell whether this defines the answer.
'stimulate in garden' is the wordplay.
'stimulate' becomes 'urgeon' (I can't justify this - if you can you should give a lot more credence to this answer).
'in' means one lot of letters goes inside another.
'garden' becomes 'bed' (I've seen this in other clues).
'urgeon' placed within 'bed' is 'BURGEONED'.
Can you help me to learn more?
(Other definitions for burgeoned that I've seen before include "Developed and flourished" , "Ego burden (anag.)" .)