Group of drivers right to restrict parking out of consideration (5)
I believe the answer is:
apart
'out of consideration' is the definition.
(something put 'apart' is out of consideration)
'group of drivers right to restrict parking' is the wordplay.
'group of drivers' becomes 'aa' (Automobile Association).
'right' becomes 'rt'.
'to restrict' is an insertion indicator.
'parking' becomes 'p'.
'aa'+'rt'='aart'
'aart' going around 'p' is 'APART'.
(Other definitions for apart that I've seen before include "Cut off - in pieces" , "First Christmas present from my love" , "Unconnected" , "Separately, aside" , "in bits" .)