1) Clean 2) Flawlessly 3) Habitually clean 4) How the honest fight 5) In a tidy way 6) In an adroit manner 7) Without a hitch Found on https://www.crosswordclues.com/clue/cleanly
Clean'ly adverb 1. In a clean manner; neatly. « He was very cleanly dressed. Dickens. » 2. Innocently; without stain. Shak. 3. Adroitly; dexterously. Middleton. Found on http://www.encyclo.co.uk/webster/C/89