Answer:

OLDSCHOOL

Answer	Crossword Clue
OLDSCHOOL	Bunch of ancient fish?
OLDSCHOOL	Like one resisting innovation
OLDSCHOOL	Like some conservative teaching methods

OLDSCHOOL	Conservative group
OLDSCHOOL	Group that resists change
OLDSCHOOL	Traditionalists
OLDSCHOOL	Opposed to innovation
OLDSCHOOL	Traditional
OLDSCHOOL	Group that dislikes whippersnappers
OLDSCHOOL	Opposite of avant-garde
OLDSCHOOL	Steely Dan is never going back to theirs

OLDSCHOOL	Like Dr. J and Kool and the Gang