
1) African tea 2) African tea leaves 3) Arabian stimulant 4) Arabian tea 5) Chewable Mideast stimulant 6) Chewable stimulant of Arabia 7) Khat 8) Oceanian deity 9) Plant chewed in arabia 10) Quat 11) Stimulant 12) Stimulant drug 13) Vanuatu mythology 
Found on 
https://www.crosswordclues.com/clue/qat

1) Kat 2) Khat 3) Quat 
Found on 
https://www.crosswordclues.com/clue/qat
 [deity]
[deity]  Qat (or Qet, Kpwet, Iqet, Ikpwet etc. – see below) is the principal god in the oral mythology of the Banks Islands, a small archipelago of northern Vanuatu, Melanesia. Although Qat was never formally worshipped as a deity, the folklore of these once animist populations traditionally referred, and still does, to Qat as the spirit t...
Found on 
http://en.wikipedia.org/wiki/Qat_(deity)

leaves chewed or brewed in tea as a stimulant
Found on 
http://phrontistery.info/q.html

QAT is an abbreviation for Quality and Testing
Found on 
http://www.probertencyclopaedia.com/N17.HTM

Qatar (State of)
Found on 
http://www.translationdirectory.com/glossaries/glossary139.htm

Evergreen shrub with white flowers belonging to the staff-tree family, native to Africa and Asia. The leaves are chewed as a mild narcotic drug in some Arab countries. Its use was banned in Somalia 1983. (Genus 
Catha edulis, family Celastraceae.)
Found on 
https://www.encyclo.co.uk/local/21221
  No exact match found.