Got fit, healed outwardly (8)
I believe the answer is:
captured
'got' is the definition.
(capturing is a kind of getting)
'fit healed outwardly' is the wordplay.
'fit' becomes 'apt' (I've seen this before).
'healed' becomes 'cured' ('cure' can be a synonym of 'heal').
'outwardly' is an insertion indicator.
'apt' placed within 'cured' is 'CAPTURED'.
(Other definitions for captured that I've seen before include "Took prisoner" , "Caught, seized after a chase" , "Prisoners" , "Arrested, seized" , "Apprehended" .)