Shrink using association without therapy's mean (8)
I believe the answer is:
contract
'shrink' is the definition.
(synonyms)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for contract that I've seen before include "Document setting out terms of agreement" , "bargain" , "Shrink in written agreement" , "Binding agreement between two or more" , "Pick up" .)