clock radio vs wireless

clock radio and wireless both are nouns.

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

As nouns, wireless is a hypernym of clock radio; that is, wireless 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
wireless: an electronic receiver that detects and demodulates and amplifies transmitted signals

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

clock radio (noun)	wireless (noun)
a radio that includes a clock that can be set to turn it on automatically	a communication system based on broadcasting electromagnetic waves
	an electronic receiver that detects and demodulates and amplifies transmitted signals
	transmission by radio waves
	medium for communication

clock radio (adjective)	wireless (adjective)
	having no wires