One might admit you agree terms, to an extent (7)
I believe the answer is:
greeter
'one might admit' is the definition.
I can't judge whether this defines the answer.
'you agree terms to an extent' is the wordplay.
'to an extent' indicates the answer is hidden within the clue.
'GREETER' can be found hidden inside 'you agree terms'.
Can you help me to learn more?
(Other definitions for greeter that I've seen before include "One who welcomes" , "mourner in kirk?" , "Doorman, say" .)