Timid throw (3)
I believe the answer is:
shy
I believe this clue is a double definition.
'timid' is the first definition.
(similar in meaning)
'throw' is the second definition.
(shy can mean to throw or sling)
(Other definitions for shy that I've seen before include "Chary" , "Fling or throw" , "Timid and self-conscious" , "Pitch" , "Reserved" .)