They are predisposed to indicate agreement (6)
I believe the answer is:
yesmen
'they are predisposed to indicate' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'agreement' is the wordplay.
I cannot really see how this works, but
'agreement' could be 'yes' (saying yes to something) and 'yes' is found within the answer.
The remaining letters 'men' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for yesmen that I've seen before include "Followers who appear for" , "they obey" , "Crawlers" , "Sycophants" , "They always agree with bosses" .)