A novel 'Beau's' Gallic gesture (5)
I believe the answer is:
geste
'a novel' is the definition.
Both the definition and answer are singular nouns.
Maybe they are linked in a way I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for geste that I've seen before include "In the past, a notable deed" , "Beau -, P. C. Wren's Foreign Legion novel" , "Beau -, P. C. Wren novel of French Foreign Legion" , "Exploit" .)