Sexual liaison lifted simple-minded singer (Jim, that is) in club (10)
I believe the answer is:
knobkerrie
'club' is the definition.
(I know that knobkerrie is a type of club)
'sexual liaison lifted simple-minded singer jim that is' is the wordplay.
I cannot quite understand how this works, but
'that is' could be 'ie' (short for Latin 'id est', 'that is') and 'ie' is found within the answer.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for knobkerrie that I've seen before include "club" , "South African wooden weapon" , "Stick" .)