Donald's suit? (5)
I believe the answer is:
trump
This clue might be a double definition.
'donald's' is the first definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
'suit?' is the second definition.
(I know that trump is a type of suit)
Can you help me to learn more?
(Other definitions for trump that I've seen before include "High card" , "Playing card having temporary higher value" , "Outdo (with a card?)" , "Card of designated top suit" , "Brick" .)