This Happens When You Throw a Clock Out of a Window

This page is the CodyCross answer for the clue below from Mesopotamia, Group 980, Puzzle 3 (Trade Routes).

Question is: This Happens When You Throw a Clock Out of a Window

and the answer is: TIMEFLIES

Word Meaning:

TIME FLIES — (idiomatic) Time passes quickly.

Definitions from Wiktionary.