Answer: ifall

AnswerCrossword Clue
IFALL"... else fails..."
IFALL".. else fails . . ."
IFALL"... to Pieces" (Patsy Cline hit)
IFALL"... goes according to plan..."
IFALL"... else fails ..."
IFALLPatsy Cline's "... to Pieces"
IFALL"... else fails . . ."
IFALLPatsy Cline's "-- to Pieces"
IFALL".. goes well ..."