More than a couple of lines in total (7)
I believe the answer is:
overall
'in total' is the definition.
(I've seen this before)
'more than a couple of lines' is the wordplay.
'more than' becomes 'over' (eg over 100 is more than 100).
'couple of lines' becomes 'll' (two abbreviations for line).
'over'+'a'+'ll'='OVERALL'
(Other definitions for overall that I've seen before include "Taking account of all the factors" , "Omnipotent" , "sweeping?" , "Protective cover for worker" , "on average" .)