Plea to add two points to formal agreement (8)
I believe the answer is:
entreaty
'plea' is the definition.
(thesaurus)
'points to formal agreement' is the wordplay.
'points' becomes 'en'.
'to formal agreement' becomes 'treaty' (I've seen this before).
'en'+'treaty'='ENTREATY'
'to add two' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for entreaty that I've seen before include "petition" , "Earnest or urgent request" , "Teeny rat (anag.)" , "Earnest plea" , "application for assistance" .)