'admirer' definitions:

Definition of 'admirer'

From: WordNet
noun
A person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library" [syn: supporter, protagonist, champion, admirer, booster, friend]
noun
A person who admires; someone who esteems or respects or approves
noun
Someone who admires a young woman; "she had many admirers" [syn: admirer, adorer]