Calico can be used as a noun or an adjective.
Calico is stressed on the first syllable. A simple way of testing which syllable is stressed is by saying the word aloud. Look for the syllable that you naturally emphasise more in your speech.
Calico Joe's career is over, and he drifts home to Calico Rock, partially paralyzed, speech impeded, to work as a groundskeeper rather than earning a plaque in baseball's Hall of Fame. Source: Calico Joe
The part of speech for this particular word is a noun.
part of speech
A calico quilt is a quilt made out of calico fabric.
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.
The part of speech of "came" is a verb.