Crossword Genius

Pool water tester (3)

Ross

I believe the answer is:

toe

'pool water tester' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for toe that I've seen before include "Conform-...the line" , "A foot division" , "Lower end or tip" , "Front of shoe" , "Feature of footwear" .)

I've seen this clue in The Wall Street Journal, The Washington Post Sunday and the Universal.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.