Frame for the Feet Attached to a Horse's Saddle

This page is the CodyCross answer for the clue below from Science Lab, Group 313, Puzzle 5 (Vaporization).

Question is: Frame for the Feet Attached to a Horse's Saddle

and the answer is: STIRRUPS

Word Meaning:

STIRRUPS — plural of stirrup

Definitions from Wiktionary.