nettle vs get at

nettle is a noun but get at is not a noun.

Word	Noun	Adjective	Verb	Adverb
nettle	Yes	No	Yes	No
get at	No	No	Yes	No

As verbs, nettle and get at are synonyms defined as:

nettle and get at: cause annoyance in; disturb, especially by minor irritations

Other synonyms of nettle include annoy, bother, chafe, devil, get to, gravel, irritate, nark, rag, rile, vex.

nettle (noun)	get at (noun)
any of numerous plants having stinging hairs that cause skin irritation on contact (especially of the genus Urtica or family Urticaceae)

nettle (verb)	get at (verb)
cause annoyance in; disturb, especially by minor irritations	cause annoyance in; disturb, especially by minor irritations
sting with or as with nettles and cause a stinging pain or sensation	reach or gain access to
	influence by corruption