Big scorer's return holds back north-eastern second team (7)
I believe the answer is:
arsenal
'team' is the definition.
(Arsenal football club)
'big scorer's return holds back north-eastern second' is the wordplay.
'big scorer' becomes 'Lara' (cricketer Brian Lara).
'return' says the letters should be written backwards.
'holds' is an insertion indicator.
'back' says the letters should be written in reverse.
'north eastern second' becomes 'nes' (this could be a standard abbreviation of which I'm unaware).
'lara' back-to-front is 'aral'.
'nes' backwards is 'sen'.
'aral' going around 'sen' is 'ARSENAL'.
Can you help me to learn more?
(Other definitions for arsenal that I've seen before include "Weapons/ammo store" , "All a country's weapons" , "2014 and 2015 FA Cup winners" , "Military structure for arms and ammunitions" , "stock" .)