Father with material for royal residence (6)
I believe the answer is:
palace
'royal residence' is the definition.
(I've seen this in another clue)
'father with material' is the wordplay.
'father' becomes 'pa' (pa can mean dad or father).
'with' means one lot of letters go next to another.
'material' becomes 'lace' (lace is a kind of material).
'pa'+'lace'='PALACE'
'for' acts as a link.
(Other definitions for palace that I've seen before include "See 16" , "Sovereign's residence" , "Grand building" , "See 23" , "Official residence of a sovereign" .)