Non-Functional Inner Digit on a Dog's Foot
This page is the CodyCross answer for the clue below from Forests, Group 1989, Puzzle 5 (Sustainability).
Question is: Non-Functional Inner Digit on a Dog's Foot
and the answer is: DEWCLAW
Word Meaning:
DEWCLAW — A digit, hoof or claw that does not reach the ground.
Definitions from Wiktionary.