The noun admirer has 3 senses (first 1 from tagged texts)
1. (1) supporter, protagonist, champion, admirer, booster, friend -- (a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library")
2. admirer -- (a person who admires; someone who esteems or respects or approves)
3. admirer, adorer -- (someone who admires a young woman; "she had many admirers")