Amongst a group of men she is reduced to silence (8)
I believe the answer is:
squashed
'amongst a group of men she' is the definition.
I can't judge whether this defines the answer.
'reduced to silence' is the wordplay.
I cannot really see how this works, but
'reduced' could be 'quashed' ('quash' can be a synonym of 'reduce') and 'quashed' is found in the answer.
A single letter 's' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
'is' acts as a link.
Can you help me to learn more?
(Other definitions for squashed that I've seen before include "Flattened or crushed" , "pressed in" , "humiliated" .)