jigjag
wend/wind
Although both mean proceeding in an indirect line, I think 'wind' implies the movement of something lengthy such as a river or a herd of cattle strung out (as in Gray's elegy).
However, the clincher in the clue is that E is a compass point and I is not. I don't think 'win' is a close enough definition of three points.
The issue of a random selection of letters occurring twice in the same crossword may well be controversial. I know the Times would not have more than one 'hidden word' clue, for example.