Scams nurse with suspicious agreement (9)
I believe the answer is:
consensus
'agreement' is the definition.
(consensus is a kind of agreement)
'scams nurse with suspicious' is the wordplay.
'scams' becomes 'cons' (con can mean a scam or scheme).
'nurse' becomes 'EN' (abbreviation for enrolled nurse).
'with suspicious' becomes 'sus' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'cons'+'en'+'sus'='CONSENSUS'
Can you help me to learn more?
(Other definitions for consensus that I've seen before include "Majority view" , "agreed" , "Unanimity" , "General opinion" , "General agreement" .)