29 across
Oppose
noble
queen
(7)
Oppose noble queen (7)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
The definition is Oppose — to act against something. For the wordplay, you've got COUNT, a titled nobleman, so that's your "noble", and then ER tacked on the end for "queen" (Elizabeth Regina).