put down vs clock on

put down and clock on both are verbs.

Word	Noun	Adjective	Verb	Adverb
put down	No	No	Yes	No
clock on	No	No	Yes	No

As verbs, clock on is a hyponym of put down; that is, clock on is a word with a more specific, narrower meaning than put down:

put down (verb)	clock on (verb)
put down in writing; of texts, musical compositions, etc.	register one's arrival at work
make a record of; set down in permanent form
put in a horizontal position
remove (cargo, people, etc.) from and leave
cause to sit or seat or be in a settled position or place
put (an animal) to death
reduce in worth or character, usually verbally
cause to come to the ground