May come to respect the royal staff (7)
I believe the answer is:
sceptre
'the royal staff' is the definition.
(I've seen this before)
'may come to respect' is the wordplay.
'may come to' is an anagram indicator.
'respect' anagrammed gives 'SCEPTRE'.
(Other definitions for sceptre that I've seen before include "Royal baton" , "Respect (anag) -- symbol of ruler's authority" , "Part of the royal regalia" , "Royal staff (paired with 2 down)" , "Royal symbol" .)