Answer: perf

AnswerCrossword Clue
PERFB'way abbreviation.
PERFStamp feature, to philatelists
PERFHole, in philatelic jargon
PERFGram. tense
PERFPhilatelist's term
PERFPhilatelist's abbr.
PERFStamp feature, in philately lingo
PERFPhilatelist's concern, briefly
PERFStamp feature, to a philatelist
PERFB'way showing
PERFLike most postage stamps: Abbr.
PERFBroadway showing, for short
PERFFlawless: Abbr.
PERFWithout defects: Abbr.
PERFIdeal, in slang
PERFTheatrical abbreviation
PERFAnother abbreviation in theatre ads.
PERFAbbreviation in theatre ads.
PERFTheatrical abbreviation.
PERFTense, in grammar: Abbr.
PERFPart of a philatelist's dotted line
PERFWithout flaw (abbr.)
PERFStamp collector's abbr.
PERFLine to tear along: Abbr.
PERFDotted line, at times: Abbr.
PERFCertain border, to a philatelist
PERFRated "10" (abbr.)
PERFPierced with holes (abbr.)