Crossword Clue:

A chance occurrence

AnswerCrossword Clue
HAPChance occurrence
PURECOINCIDENCEChance occurrence
HAPChance occurrence, old-style
DILATIONA swell occurrence?
IFEVERWords suggesting a rare occurrence
YAWNOccurrence at many a lecture
MIXEDBLESSINGUpside occurrence with a downside
ONTHEOFFCHANCEWith hope of a rare occurrence
ONSETFirst occurrence, as of a symptom
LAMBEAULEAPCommon occurrence in Green Bay after a Packer touchdown