Answer: SIG

AnswerCrossword Clue
SIGCertain frat boy
SIGMr., in Milano
SIGMr., in Pisa
SIGA "John Hancock": Abbr.
SIGRuman of films
SIGActor Ruman of "Ninotchka"
SIGCheck-cashing requirement: Abbr.
SIGContract necessity: Abbr.
SIGMessina Mr.
SIGS, to a frat guy
SIGM. : France :: ... : Italy
SIGM. equivalent
SIGForeign Mr.
SIGM., in Milan
SIGCertain fraternity man, informally
SIGAutograph: Abbr.
SIGPisan Mr.
SIGItalian term of address: Abbr.
SIGE-mail attachment
SIGAutograph, briefly
SIGE-mail attachment: Abbr.
SIGJohn Hancock
SIGName on a dotted line: Abbr.
SIGContract need: Abbr.
SIGComposer Romberg
SIGMr.: It.
SIGDirectional: abbr.
SIGBottom line need: abbr.
SIGActor ... Arno
SIGEmail ID
SIG... Ep (college frat)
SIGWritten name: Abbr.
SIGAutograph (Abbr.)
SIGRumann of "Ninotchka"
SIGJohn Hancock: Abbr.
SIGFrat letter, briefly
SIGMilano Mr.
SIG.. Sauer: handgun
SIGRuman of Marx Brothers films
SIGActor Ruman or composer Romberg