Answer: intro

AnswerCrossword Clue
INTRO"Heeeeere's Johnny!" is one
INTROEmcee's job
INTROEmcee's opening
INTROHeadliner's cue
INTROOpening words
INTRO"101" class, briefly
INTROBrief opening
INTROEmcee's responsibility
INTROOpening bars
INTROChap. 1 preceder
INTROJazz singer's cue
INTROOpening
INTROIt may begin with "Here's"
INTROLead-in, briefly
INTRO"In this corner ..." begins one, briefly
INTROForeword
INTROIt may begin "And now ..."
INTRO"SNL" host's monologue, e.g.
INTROForeword, briefly
INTROPreamble
introintroduction
INTROUp-front material
INTROEmcee's line
INTROOpening remarks
INTROWithin, in combinations
INTROMission starter
INTROOpening musical passage
INTROEmcee's lines
INTROShort beginning
INTROEmcee's task
INTROLow-level course
INTROOpening remarks, casually
INTROFirst-year course
INTROPrefatory words
INTROLead-in
INTROWords before Chapter 1
INTROOpening passage
INTROFreshman's course, briefly
INTROBook opener
INTRO"101" course