Solution

SPECTATOR

2 clues

Observer

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

Other solutions to Observer

Onlooker

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

Other solutions to Onlooker

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