Solution

TRUDGED

3 clues

Plodded

Word class: Verb
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Plodded

Slogged

Word class: Verb
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles

Walked heavily

Word class: Verb
Nature of clue: Description
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Walked heavily

Words are categorized by artificial intelligence: there can be mistakes.