Old man covering a deity in temple (6)
I believe the answer is:
pagoda
'temple' is the definition.
(pagoda is a kind of temple)
'old man covering a deity' is the wordplay.
'old man' becomes 'pa' (both can mean father).
'covering' means one lot of letters go next to another (on top of in down clue).
'deity' becomes 'god' ('god' can be a synonym of 'deity'**).
'a' put after 'god' is 'goda'.
'pa'+'goda'='PAGODA'
'in' acts as a link.
(Other definitions for pagoda that I've seen before include "Eastern temple, usually a tower" , "Oriental temple, often a tower" , "Pyramidal temple with an upward curving roof" , "shrine" , "Asian temple with up-turned eaves" .)