Grace for one seen in action as discussed (7)
I believe the answer is:
debated
'discussed' is the definition.
(debating is a kind of discussing)
'grace for one seen in action' is the wordplay.
'grace for' becomes 'bat' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'one seen in' means one lot of letters goes inside another.
'action' becomes 'deed' (deed is a kind of action).
'bat' inserted inside 'deed' is 'DEBATED'.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for debated that I've seen before include "Discussed formally" , "Argued" , "Contemplated" , "Considered" , "Shared opinions" .)