Answer: fluke

AnswerCrossword Clue
FLUKEOutlandish bit of luck
fluketo obtain by chance
flukeflounder
flukeeither half of a whale's tail
flukethe barbed part of an anchor or a spear
flukelucky chance
FLUKEHappy accident
FLUKESerendipitous occurrence
FLUKEChance happening
FLUKEA stroke of luck
FLUKESushi offering
FLUKEHole in one, assuredly
FLUKEResult of careful planning it's not
FLUKEBit of serendipity
FLUKEAccidental stroke of luck
FLUKESummer flounder
FLUKEStroke of luck
FLUKELucky chance
FLUKEStroke of luck: Slang.
FLUKELucky chance: Slang.
FLUKEPart of a whale's tail.
FLUKELucky chance.
FLUKEStroke of luck.
FLUKEAn accidental success: Colloq.
FLUKEHarpoon barb.
FLUKEAccidental success
FLUKEQuirk of fate
FLUKEUnlikely stroke of luck
FLUKELucky break
FLUKELucky shot
FLUKEWinning the lottery, say
FLUKEStroke of good luck