There's no hurry to get trousers for the prisoners (4,2,4)

'there's no hurry to' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'trousers for the prisoners' is the wordplay.
'trousers' becomes 'bags' (informal term for trousers, Oxford bags).
'for' says to put letters next to each other.
'the prisoners' becomes 'oftime' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'bags'+'oftime'='BAGS OF TIME'

'get' acts as a link.

Can you help me to learn more?