What us this ></a>

Answer 1

the "<" and the ">" are tag delimiters in HTML

Answer 2

if you talk about <a> tag, it is used for links.
example: <a href=“http://www.sololearn.com”>Solo_Link</a>

Answer 3

the less/greater than sign

Answer 4

if somewhere is written like you posted, that should be a mistake.

Answer 5

does it mean anything

Answer 6

no browser will just ignore that.