It's liable to expansion in Manchester (5)
I believe the answer is:
chest
'it's liable to expansion' is the definition.
I can't judge whether this defines the answer.
'in manchester' is the wordplay.
'in' says the answer is hidden in the clue.
'CHEST' is hidden within 'manchester'.
Can you help me to learn more?
(Other definitions for chest that I've seen before include "Piece of furniture" , "Bra on it" , "Large, sturdy box with a lid" , "Trunk or crate" , "Strongbox; sternum" .)