Answer:

maxes

Answer	Crossword Clue
MAXES	Tops (out)
MAXES	.. out: uses up, as credit
MAXES	Plateaus, with "out"

MAXES	.. out (reaches an acme)
MAXES	Tops out
MAXES	Uses up all the credit on, with "out"
MAXES	Author Brand and others.
MAXES	Baer and Factor
MAXES	Levels off, with "out"
MAXES	Completely uses up, as a credit card, with "out"
MAXES	Ceilings

MAXES	Ceilings, informally
MAXES	High points