Answer: CHITS

AnswerCrossword Clue
CHITSClub i.o.u.'s
chitsany receipt, voucher, or similar document, esp. of an informal nature
chitschild or young person, esp. a pert girl
chitssigned note for money owed for food, drink, etc.
chitsnote; short memorandum
CHITSSigned notes
CHITSPayment vouchers
CHITSPossible poker payments
CHITSSigned i.o.u.'s
CHITSDebt memos
CHITSCocky kids
CHITSNotes of a sort
CHITSSigned I.O.U.'s
CHITSSome poker payments
CHITSI.o.u.'s
CHITSSigned vouchers
CHITSPert lasses
CHITSShort notes
CHITSI.O.U.'s
CHITSMemos.
CHITSVouchers.
CHITSIOU slips
CHITSDebt markers
CHITSIOU's
CHITSReceipts
CHITSMarkers
CHITSDebt evidence
CHITSIOUs
CHITSVouchers