Oppose meeting of nobleman and queen (7)
I believe the answer is:
counter
'oppose meeting' is the definition.
'counter' can be an answer for 'oppose' (I've seen this before). I am unsure of the 'meeting' bit.
'nobleman and queen' is the wordplay.
'nobleman' becomes 'count' (count is a type of aristocrat).
'and' is a charade indicator (letters next to each other).
'queen' becomes 'ER' (short for Elizabeth Regina ie Queen Elizabeth).
'count'+'er'='COUNTER'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for counter that I've seen before include "Where to pay in shop" , "Parry" , "Obverse" , "Piece in board game" , "Chip" .)