Zigzag (5)
I believe the answer is:
weave
'zigzag' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for weave that I've seen before include "Zigzag (through traffic?)" , "move from side to side" , "Interlace strands of fabric" , "Make (fabrics)" , "Use a loom" .)