Labour MP replacing Rishi initially - that's a relief (9)
I believe the answer is:
exemption
'a relief' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'labour mp replacing rishi initially' is the wordplay.
I cannot really see how this works, but
'mp' is found in the answer.
This explanation may well be incorrect...
'that's' is the link.
Can you help me to learn more?
(Other definitions for exemption that I've seen before include "A release from, eg, tax liability" , "Immunity from an obligation or duty" , "Freedom from liability" , "Discharge" , "Freedom (from, eg, tax)" .)