Answer:

standard

Answer	Crossword Clue
STANDARD	Song in a canon
STANDARD	Flag
STANDARD	"Stardust," for example

STANDARD	Usual
STANDARD	Normal
STANDARD	Reference point
STANDARD	Not automatic
STANDARD	Approved model
STANDARD	Criterion.
STANDARD	Flag or banner.
STANDARD	Colors of a cavalry unit.

STANDARD	Flag or emblem.
STANDARD	Flag.
STANDARD	Banner.
STANDARD	Emblem.
STANDARD	Erstwhile N. Y. newspaper.
STANDARD	Criterion
STANDARD	Basic rule
STANDARD	Norm

STANDARD	Part of SOP
STANDARD	Roman legion eagle, e.g.
STANDARD	It goes with time
STANDARD	Cut-and-dried
STANDARD	Run of the mill
STANDARD	Comparison basis
STANDARD	Usual position - next to a road (8)
STANDARD	Source of some discrimination

STANDARD	Customary
STANDARD	Yardstick
STANDARD	Automatic alternate
STANDARD	Par for the course?
STANDARD	Run-of-the-mill
STANDARD	Benchmark