Ridiculed delegates will not gel, in other words (6)
I believe the answer is:
teased
'ridiculed' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Perhaps you can see an association between them that I don't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for teased that I've seen before include "Tantalised or annoyed goodnaturedly" , "Made fun of, playfully" , "Annoyed playfully and carded wool" , "Mocked playfully" , "Made mild fun of, bantered" .)