Crossword clues for Addition to a letter 5 lettersAnswerClueSERIFLetter additionSERIFAddition to a letterPPSLetter addition lettersPSSLetter addition lettersMSGFood additive lettersSTPEngine additive lettersSTPAuto additive lettersSTPFuel additive lettersBTWPre-addition lettersSTPOil additive lettersPPSSSecond letter additionsSTPGas additive lettersPPSLetter addition: Abbr.PPSLetter addition, for short.PPSLetter additionsPSSBrief letter additionsPSSLetter additions brieflyPSSLetter additions: Abbr.PPSAdditions to lettersPSSAdditional thought lettersPSSAdditions to letters.PSSAdditions to letters: Abbr.ENCLetter's addition: Abbr.ELLLetter-shaped building additionENCLSomething in addition to the letter: Abbr.PSAddition to a letter.PPSSecond addition to a letter.CEDILLAAddition to a letterENCBusiness-letter abbr. signalling that additional materials are includedPPSSec. addition to a signed letterNATURALFOODPurportedly additive-free fare, or what the indicated letters are for the starred answers?