clock radio vs radio set

clock radio and radio set both are nouns.

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

As nouns, radio set is a hypernym of clock radio; that is, radio set is a word with a broader meaning than clock radio:

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

Other hypernyms of clock radio include radio, radio receiver, receiving set, tuner, wireless.

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