Answer:

crest

Answer	Crossword Clue
CREST	Coat-of-arms part
CREST	Cardinal's feature
CREST	Wave high?

CREST	Wave top
CREST	Apex
CREST	Peak
CREST	Avian tuft
CREST	Rembrandt rival
CREST	Heraldic figure
CREST	Reach the top of
CREST	Triceratops feature

CREST	Heraldry figure
CREST	"Look Ma! No cavities!" toothpaste
CREST	Cardinal topper
CREST	Colgate rival
CREST	Highest point
CREST	Top of a wave
CREST	Reach a high point
CREST	Royal emblem

CREST	Whitecap, e.g.
CREST	Top
CREST	Aquafresh rival
CREST	Family insignia
CREST	Surfer's perch
CREST	Ridge
CREST	Wave peak
CREST	Colgate competitor

CREST	Aquafresh alternative
CREST	Part of a coat of arms
CREST	"Falcon ..."
CREST	High point of a flood
CREST	Toothpaste brand
CREST	High point
CREST	Trough's opposite
CREST	Cardinal point?

CREST	Cockatoo's topper
CREST	Toothpaste originally called "Fluoristan"
CREST	Coat of arms
CREST	Pepsodent rival
CREST	Summit