Loveless workers' association introducing tea for free (7)
I believe the answer is:
unchain
'free' is the definition.
(unchaining is a kind of freeing)
'loveless workers' association introducing tea' is the wordplay.
I cannot quite see how this works, but
'tea' could be 'chai' (I've seen this before) and 'chai' is present in the answer.
This explanation may well be incorrect...
'for' acts as a link.
Can you help me to learn more?
(Other definitions for unchain that I've seen before include "Release from bondage" , "Release from fetters" , "loose" , "Free" .)