Temple walk, maybe, in flat area (6)
I believe the answer is:
pagoda
'temple' is the definition.
(pagoda is a kind of temple)
'walk maybe in flat area' is the wordplay.
'walk maybe' becomes 'go'.
'in' is an insertion indicator.
'flat' becomes 'pad' (person's home).
'area' becomes 'a' (maths abbreviation).
'go' inserted inside 'pad' is 'pagod'.
'pagod'+'a'='PAGODA'
(Other definitions for pagoda that I've seen before include "Pyramid-shaped Hindu temple" , "A buddhist temple built in tiers" , "Hindu/Buddhist temple" , "Temple - a GPO ad (anag)" , "religious structure" .)