tuner vs clock radio

tuner and clock radio both are nouns.

Word	Noun	Adjective	Verb	Adverb
tuner	Yes	No	No	No
clock radio	Yes	No	No	No

As nouns, clock radio is a hyponym of tuner; that is, clock radio is a word with a more specific, narrower meaning than tuner:

tuner: an electronic receiver that detects and demodulates and amplifies transmitted signals
clock radio: a radio that includes a clock that can be set to turn it on automatically

tuner (noun)	clock radio (noun)
an electronic receiver that detects and demodulates and amplifies transmitted signals	a radio that includes a clock that can be set to turn it on automatically
someone who tunes a musical instrument