Like a wallflower (3)
I believe the answer is:
shy
'like a wallflower' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for shy that I've seen before include "Throw in bashful way" , "Timid (around people)" , "Bashful or timid" , "Throw in self-conscious way" , "Fling or throw" .)