A claw that can pick up a pound in weight (5)
I believe the answer is:
talon
'a claw that can pick up' is the definition.
'talon' can be an answer for 'a claw' (talon is a kind of claw). I'm not sure about the rest of the definition.
'a pound in weight' is the wordplay.
'pound' becomes 'L' (the pound sign is based on an L).
'in' indicates putting letters inside.
'weight' becomes 'ton' (unit of weight).
'a'+'l'='al'
'al' put inside 'ton' is 'TALON'.
Can you help me to learn more?
(Other definitions for talon that I've seen before include "Bird's claw" , "E.g. hawk's claw" , "a gripping one" , "Hooked claw; cards left after deal" , "Raptor's claw" .)