Ensnares (7)
(Other definitions for tangles that I've seen before include "Knots" , "Sent gal (anag.)" .)
'ensnares' is the definition.
('trap' can be a synonym of 'ensnare')
This is the entire clue.
(Other definitions for traps that I've seen before include "bunkers" , "jazz percussion?" , "gins" , "The pitfalls" , "Toils" .)