a long slit

man of ability

cannot completely... (because it's excessive)

Same as above.

sharp and able person

edged tool, cutlery / goods often sold out

yeah, sure (interjection of understanding and mild dismissal)

(childish) crawling of a baby

(childish, of a baby) to crawl

yes; okay; understood, got it / yes; here; present / right; so (I agree) / uh-huh (I’m hearing) / sorry? (What did you say?) / go, start; stop, time's up (expressing a timing)