Cassatt Painted Under the Horse __ Tree

This page is the CodyCross answer for the clue below from Circus, Group 85, Puzzle 2 (Physical Comedy).

Question is: Cassatt Painted Under the Horse __ Tree

and the answer is: CHESTNUT

Word Meaning:

CHESTNUT — (countable) An edible nut (technically a fruit) of the Spanish chestnut or sweet chestnut tree (Castanea sativa); also (chiefly preceded by a descriptive word), a nut from a related shrub or tree; or a similar nut from an unrelated plant.

Definitions from Wiktionary.