Crossword Clue:

Its not meant to be used on nails

AnswerCrossword Clue
PEENIt's not meant to be used on nails
HARDANDFASTRULEIt's not meant to be broken
COFFEETABLEBOOKIt's not meant to be shelved
CHAINLETTERIt's meant to be mailed on
AJAXCleaner not to be used on metal