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"walker" is also used as a crossword clue. If that's what you saw, the answer is often pedestrian (10 letters).
Definitions
an enclosing framework on casters or wheels; helps babies learn to walk
Word origin
From Middle English walkere (“one who walks, traveller”), equivalent to walk + -er.
Used in a sentence
“The park was full of morning walkers enjoying the fresh air.”
“He decided to become a long-distance walker for charity events.”
“I would ask for the pleasure of your company, Mr. Knightley, but I am a very slow walker, and my pace would be tedious to you; and, besides, you have another long walk before you, to Donwell Abbey.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Person on foot”6 letters
02“Aid with wheels”6 letters
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