A thin sheet of metal, or a fencing weapon
... sheet metal Foil - Microwave no-no Foil - Metal 
sheet used for fencing Foil - Thin sheet metal used for fencing Foil - Scotch sword
... [DOC] [TLE] METAL IN A THIN SHEET - crossword answers, clues, definition ... [PAR] 'METAL IN A THIN SHEET' is a 17 letter phrase starting with M and ending with T 
... Fencing weapon (4)  FOIL  Prevent the success of (4)  FOIL  Thin metal... [DOC] [TLE] foil (sheet metal) - Memidex dictionary/thesaurus [PAR] "foil" (sheet metal) definition: a piece of thin and flexible sheet metal.