obstructor vs hindrance

obstructor and hindrance both are nouns.

Word	Noun	Adjective	Verb	Adverb
obstructor	Yes	No	No	No
hindrance	Yes	No	No	No

As nouns, hindrance is a hyponym of obstructor; that is, hindrance is a word with a more specific, narrower meaning than obstructor:

obstructor (noun)	hindrance (noun)
any structure that makes progress difficult	the act of hindering or obstructing or impeding
someone who systematically obstructs some action that others want to take	any obstruction that impedes or is burdensome
	something immaterial that interferes with or delays action or progress