In N Out #6 Dry River

Price range: $5.00 through $20.00

Solve this riddle:
“River runs dry, no current to show,
Cracked earth quiet, nowhere to go.
But step to the mic, the hustle foretold —
Locked in the fold, what puts you in the zone?”

Riddle Revealed by Frost14007

the answer is the 1st word in the collection riddle.  can you solve them all?