Features No. 1 on the Beaufort Scale

This page is the CodyCross answer for the clue below from Concert Hall, Group 598, Puzzle 3 (Leonard Bernstein).

Question is: Features No. 1 on the Beaufort Scale

and the answer is: LIGHTAIR

Word Meaning:

LIGHT AIR — (meteorology, nautical) A light wind with wind speed between 0.3 and 1.5 m/s; a Force 1 wind strength on the Beaufort scale.

Definitions from Wiktionary.