E.g. fighter's great skill, boxing right (8)
I believe the answer is:
aircraft
'e g fighter's' is the definition.
(fighter plane is a type of aircraft)
'great skill boxing right' is the wordplay.
'great' becomes 'AI' (resembles Ac, old-fashioned term meaning very good).
'skill' becomes 'craft' (craft is a kind of skill).
'boxing' indicates putting letters inside ('box' can mean contain, as in to put in a box).
'right' becomes 'r' (abbreviation).
'ai'+'craft'='aicraft'
'aicraft' enclosing 'r' is 'AIRCRAFT'.
(Other definitions for aircraft that I've seen before include "Planes" , "means of transport" , "Eg, plane, helicopter, etc" , "Aeroplane, helicopter etc" , "Airbus A330 or A380, say" .)