Large group boasted, English put off (5)
I believe the answer is:
crowd
'large group' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for crowd that I've seen before include "See 1" , "Large group of people" , "Multitude" , "Rabble" , "Horde" .)