21 down
Benefit
introducing
former
network
(6)
Benefit introducing former network (6)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
See benefit there — that's PLUS, and you need to slot EX (your "former") right into the middle of it, giving you PL-EX-US. The whole thing is defined by network, as in an interconnected system like the nervous plexus.