
1) Cager Calvin 2) English surname
Found on
https://www.crosswordclues.com/clue/natt

The Natt (or Nat) (pronounced `Natt`) are a Jat gotra (clan) found in the Punjab region of Pakistan and India. In India, Natts are mainly found in Punjab in Gurdaspur, Ludhiana (Kakowal village) and Sangrur districts. Natts can also be found in Kurukshetra and Jind districts of Haryana. In Pakistan, The Natts are found mainly in Narowal and Gujr.....
Found on
http://en.wikipedia.org/wiki/Natt

acronym: Northern Australian Tropical Transect
Found on
https://www.encyclo.co.uk/local/20002
No exact match found.