Considered taking action - myself included (6)
I believe the answer is:
deemed
'considered' is the definition.
(deeming is a kind of considering)
'action myself included' is the wordplay.
'action' becomes 'deed' (deed is a kind of action).
'myself' becomes 'me'.
'included' means one lot of letters goes inside another.
'deed' enclosing 'me' is 'DEEMED'.
'taking' acts as a link.
(Other definitions for deemed that I've seen before include "Considered, believed" , "Regarded, considered" , "Considered, held as opinion" , "Considered, held the view" , "Viewed as, reckoned" .)