
1) Hot, dry wind of the Canaries 2) Wind from Morocco
Found on
https://www.crosswordclues.com/clue/leste

The Leste is a hot, dry, easterly wind of the Madeira and Canary Islands.{sfn|Chisholm|1911|p=499} It is similar to the Leveche. It blows from an easterly direction in autumn, winter and spring, rarely in summer, and is of intense dryness, sometimes reducing the relative humidity at Funchal to below20%. The Leste is commonly accompanied by clouds ...
Found on
http://en.wikipedia.org/wiki/Leste

A hot, dry, easterly wind of the Madeira and Canary Islands.
Found on
http://www.ggweather.com/winds.html

(pronounced Lestey): A hot, dry, southerly wind in Madeira and Northern Africa in front of an advancing depression.
Found on
https://www.encyclo.co.uk/local/20784
No exact match found.