Day MP asks for pound (5)
I believe the answer is:
thump
'for pound' is the definition.
(synonyms)
'day mp' is the wordplay.
'day' becomes 'thu' (abbreviation for Thursday).
'thu'+'mp'='THUMP'
'asks' is the link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for thump that I've seen before include "Smack" , "Punch" , "Whack" , "Common feature of Boxing" , "Say" .)