General finished with a large double (7)
I believe the answer is:
overall
'general' is the definition.
(similar in meaning)
'finished with a large double' is the wordplay.
'finished' becomes 'over' (over can mean finished or ended).
'with' means one lot of letters go next to another.
'large' becomes 'L' (eg in clothes sizes).
'double' says to double the letters.
'l' doubled is 'll'.
'over'+'a'+'ll'='OVERALL'
(Other definitions for overall that I've seen before include "Inclusive" , "Taking account of all the factors" , "Protective coat painters put on" , "Protective cover for worker" , "In total" .)