Upset gentleman dropping tablet for hit (3)
I believe the answer is:
lam
'for hit' is the definition.
(to 'lam' means to hit hard)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for lam that I've seen before include "hurried flight" , "Hit hard or repeatedly" , "Hit hard, strike" , "On this, you're fleeing, from the police" , "Batter" .)