Lament almost lying about network (4)
I believe the answer is:
grid
'network' is the definition.
(grid is a kind of network)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for grid that I've seen before include "Crossword pattern" , "Grating of parallel bars" , "this 15x15 space?" , "powerful network" , "Regular pattern of horizontal and vertical lines" .)