Don't Look One in the Mouth
This page is the CodyCross answer for the clue below from Deserts of the world, Group 1615, Puzzle 2 (Doum Palm Tree).
Question is: Don't Look One in the Mouth
and the answer is: GIFTHORSE
Word Meaning:
GIFT HORSE — (idiomatic) An apparent gift, that has substantial associated costs or drawbacks, especially a gift that does not fit perfectly with the recipient's wants or needs.
Definitions from Wiktionary.