Room for church to reverse all right (6)
I believe the answer is:
cellar
'room' is the definition.
(I've seen this before)
'church to reverse all right' is the wordplay.
'church' becomes 'CE' (abbreviation for Church of England).
'to reverse' says the letters should be written backwards.
'right' becomes 'r' (common abbreviation).
'all' written backwards gives 'lla'.
'ce'+'lla'+'r'='CELLAR'
'for' acts as a link.
(Other definitions for cellar that I've seen before include "Storage space below ground" , "It holds wine (or salt)" , "Underground storeroom" , "Where to find wine" , "Lower room" .)