Force and pressure producing pain in muscle? (5)
I believe the answer is:
cramp
'pain in muscle?' is the definition.
'cramp' can be an answer for 'pain' (I have seen 'Muscular pain' mean 'cramp' so perhaps 'pain' could also mean 'cramp'). I'm not certain of the 'in muscle?' bit.
'force and pressure' is the wordplay.
'force' becomes 'cram' (I can't justify this - if you can you should give a lot more credence to this answer).
'and' means one lot of letters go next to another.
'pressure' becomes 'p' (abbreviation).
'cram'+'p'='CRAMP'
'producing' acts as a link.
Can you help me to learn more?
(Other definitions for cramp that I've seen before include "Muscular spasm, very painful" , "development of vice" , "restraint" , "Involuntary and painful contraction of a muscle" , "Confine - muscular spasm" .)