Old Surveying Tool; Anagram of Aid Deal

This page is the CodyCross answer for the clue below from Tundra and Taiga, Group 1694, Puzzle 2 (Canadian Lynx).

Question is: Old Surveying Tool; Anagram of Aid Deal

and the answer is: ALIDADE

Word Meaning:

ALIDADE — (cartography, astronomy, surveying) A type of sighting device used for measuring angles.

Definitions from Wiktionary.