Bee can move to open flower (5)
I believe the answer is:
bloom
'flower' is the definition.
(I know that flower can be written as bloom)
'bee can move to open' is the wordplay.
'bee' becomes 'b'.
'can' becomes 'loo' (slang).
'to open' says to take the initial letters (I've seen 'opens' mean this).
The initial letter of 'move' is 'm'.
'b'+'loo'+'m'='BLOOM'
(Other definitions for bloom that I've seen before include "Open" , "Do very well" , "Coat (lens); flower" , "Flush" , "(Come into) flower" .)