
1) EI fabric 2) British slang for a moustache 3) Fictional deity
Found on
https://www.crosswordclues.com/clue/tash
[organization] TASH is an international advocacy association of people with disabilities, their family members, other advocates, and people who work in the disability field. The mission of TASH is to promote the full inclusion and participation of children and adults with significant disabilities in every aspect of their community, and to e...
Found on
http://en.wikipedia.org/wiki/TASH_(organization)
[Narnia] Tash (Turkish for `Stone` or `Rock`) is a fictional character found in C. S. Lewis` Chronicles of Narnia series. He is an antagonist in the novels The Horse and His Boy and The Last Battle. He is the patron god of the ruling class of Calormen. The Calormene capital is named Tashbaan and the Tisrocs and Tarkaans and Tarkheenas claim...
Found on
http://en.wikipedia.org/wiki/Tash_(Narnia)

The Association for the Severely Handicapped [later: The Association for Persons with Severe Handicaps; now uses the acronym only]
Found on
http://www.encyclo.co.uk/local/20895

Tash is British slang for a moustache.
Found on
http://www.probertencyclopaedia.com/browse/ZT.HTM
No exact match found.