Answer: coldsnaps

AnswerCrossword Clue
COLDSNAPSFrigid periods
COLDSNAPSHigh-heating-cost periods
COLDSNAPSFall falls, perhaps
COLDSNAPSFall events
COLDSNAPSThey have a chilling effect
COLDSNAPSHeat waves' opposites
COLDSNAPSHigh heating-cost periods
COLDSNAPSWinter phenomena
COLDSNAPSFrigidaire-Nabisco joint venture?