Recreation area — and area for coat (5)
I believe the answer is:
parka
'for coat' is the definition.
(parka is a kind of coat)
'recreation area and area' is the wordplay.
'recreation area' becomes 'park' (a park is an area for recreation).
'and' says to put letters next to each other.
'area' becomes 'a' (maths abbreviation).
'park'+'a'='PARKA'
(Other definitions for parka that I've seen before include "Hooded waterproof coat" , "weatherproof cover" , "Short, hooded coat" , "Anorak" , "Windproof jacket" .)