Crossword clues for It's most useful when it's cracked 4 lettersAnswerClueWHIPIt's most useful when it's crackedEGGSThey're of little use unless they're crackedSAFESThey may be cracked using stethoscopesNUTTREEIts products need to be cracked before useEGGIt's most useful when crackedOTTERMarine mammal that uses rocks to crack shellsEGGTo use this you'll need to get cracking