Choose something sharp (4)
I believe the answer is:
pick
'choose' is the definition.
(I know that pick is a more specific form of choose)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pick that I've seen before include "Eat very little" , "Play guitar" , "Pluck" , "Cream" , "The best tool" .)