I would not try to take the chick to a vet. The reason: the chick would probably get chilled and stressed while going to the vet, which would cause many more problems than what it has now. Besides, most vets do not know much about chickens.
That is good general advice. Gentle washing is fine in...
It is fine, and fairly normal.
I would leave it alone.
It is dry enough that it does not really need to be there, and will not bleed if cut. There is still no need to do anything, but if the sight really bothers you, take a pair of scissors and cut off about half the length, so it doesn't stick...
I would leave it alone for now.
It's a little hard for me to tell what it is in the photos (that's a common problem with tiny chicks!) But sometimes the end of umbilical cord can stick out (do not pull on an umbilical cord) and sometimes bits of something just get stuck to a chick (it's usually...