I am overturning allowance for person on the move (7)
I believe the answer is:
migrant
'person on the move' is the definition.
'migrant' can be an answer for 'person' (migrant is a kind of person). I'm not certain of the 'on the move' bit.
'i am overturning allowance' is the wordplay.
'i am' becomes 'I'm' (contraction).
'overturning' is a reversal indicator.
'allowance' becomes 'grant' (both can mean money given to someone).
'im' in reverse letter order is 'mi'.
'mi'+'grant'='MIGRANT'
'for' is the link.
Can you help me to learn more?
(Other definitions for migrant that I've seen before include "One travelling to find work" , "Traveller" , "relocating" , "Person moving abroad" , "Ring mat (anag.)" .)