Select hand tool (4)
I believe the answer is:
pick
I believe this clue is a double definition.
'select' is the first definition.
(picking is a kind of selecting)
'hand tool' is the second definition.
(I know that pick is a type of hand tool)
(Other definitions for pick that I've seen before include "tool for breaking rocks" , "Choose, select" , "Pluck" , "option" , "Choose - best" .)