1. [adjective] Being habitually clean, practising good hygiene
2. [adjective] (obsolete) Cleansing; fitted to remove moisture; dirt, etc.
3. [adjective] (obsolete) adroit; dexterous; artful
4. [adverb] In a clean way
5. [adverb] Neatly
6. [adverb] Not causing a mess or unnecessary damage
7. [adverb] Innocently; without stain
8. [adverb] Adroitly; dexterously
9. [adverb] In an adroit manner; 'he bounced it cleanly off the wall'.
10. [adverb] In a manner that minimizes dirt and pollution; 'the motor burns cleanly'.
11. [adverb] Without difficulty or distortion; 'she played the piano accompaniment cleanly'.
12. [adjective] Habitually clean; 'cleanly in their persons and habitations'.