clutch pedal vs foot pedal

clutch pedal and foot pedal both are nouns.

Word	Noun	Adjective	Verb	Adverb
clutch pedal	Yes	No	No	No
foot pedal	Yes	No	No	No

As nouns, foot pedal is a hypernym of clutch pedal; that is, foot pedal is a word with a broader meaning than clutch pedal:

clutch pedal: a pedal or lever that engages or disengages a rotating shaft and a driving mechanism
foot pedal: a lever that is operated with the foot

Other hypernyms of clutch pedal include foot lever, pedal, treadle.

clutch pedal (noun)	foot pedal (noun)
a pedal or lever that engages or disengages a rotating shaft and a driving mechanism	a lever that is operated with the foot