Brief rowing luncheon (6)
I believe the answer is:
tiffin
This clue could be a double definition.
'brief rowing' is the first definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'luncheon' is the second definition.
(I know that luncheon can be written as tiffin)
Can you help me to learn more?
(Other definitions for tiffin that I've seen before include "Indian midday meal" , "Lunch (British Raj)" , "Light (Indian) meal" , "(Anglo Indian) lunch" , "Midday meal for members of the British Raj in India" .)