Nets (6)
I believe the answer is:
meshes
'nets' is the definition.
('mesh' can be a synonym of 'net')
This is the entire clue.
(Other definitions for meshes that I've seen before include "Co-ordinates" , "gets engaged" , "Fits into, intertwines" , "Engages with others - using nets?" , "Becomes entangled or fits together" .)