Pushing against a boundary … like this answer?

EDGY

Think of a word that describes someone who's boldly testing limits or a style that feels provocative—it’s also how you might describe this answer’s placement.

The clue plays on two meanings of "edgy." Literally, it hints at "pushing against a boundary" (like being at the edge of something). But it also nods to the slang use of "edgy" for something provocative or boundary-pushing—hence the "like this answer?" wink, since the word itself fits both ideas.