Mother's wise to get a bit of physiotherapy (7)
I believe the answer is:
massage
'a bit of physiotherapy' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'mother's wise' is the wordplay.
'mother's' becomes 'ma's' (ma can mean mother).
'wise' becomes 'sage' (similar in meaning).
'mas'+'sage'='MASSAGE'
'to get' acts as a link.
Can you help me to learn more?
(Other definitions for massage that I've seen before include "Present favourably" , "Relaxing treatment" , "Manipulate the muscles" , "See 10" , "Manipulation of the muscles" .)