Crossword clues for Doubles 10 letters:FIFTHWHEELExtra person on a double date ... who's depicted by the last O in 17-, 24-, 39- and 52-Across?BOOKKEEPERSpecialist in double-entry accountingTWOBASEHITDiamond doubleDRAGONHEAD*Mint family plant with double-lipped flowersMATCHMAKERWhen doubled, "Fiddler on the Roof" tuneLATTENIGHTDouble feature about a talk show host and an after-hours barista?BETRAYKROCDouble-cross a fast-food pioneer?TAMBOURINEInstrument that may double as a tip jarJEANHARLOWDouble Whoopee star (1929)LOOKALIKESDoublesAMBIDEXTEROld-time double-dealerCHICAGOVII1974 #1 double album that included Peter Cetera's "Wishing You Were Here"EQUIVOCATEUse double talkAIDANDABETDouble back?GREATFALLSAwards ceremony category for stunt doubles?BULLFIDDLEDouble bass, informallySTIFFDRINKDOUBLEBASKETCASEOdd double container for gift fruit?PAIRSPORTSDoubles tennis and the like?BULLFIDDLEInformal name for the double bassHOCUSPOCUSDouble-dealingJOHNLENNONDouble Fantasy singerUZBEKISTANMost populous double-landlocked nationSTIFFDRINK*Double martini, e.g. (32)POSTALCARDIts price has doubled.BULLFIDDLEDouble bassTWOBASEHITBaseball player's doubleJACKKNIFEDDoubled up, in a way.GEMINATINGDoublingGHOSTIMAGEArtifact on a double exposure that might be mistaken for an apparitionPRAISEOBOECompliment the double reed wind instrument?GOSHDARNITAw, H-E-double hockey sticks!FIFTHWHEELAwkward presence on a double date . . . like each of this puzzle's circled letters?DEADRINGERPerfect doubleTWOBASEHITDoubleBOOKKEEPERJob with three consecutive double lettersSTEPLIVELYDouble-timeENEMYLINESDouble agents often cross themATHLEISUREDouble-duty garmentsCHOPECHOEDOn the double?HALFCARAFEContainer that holds two generous glasses of wine (as well as a double dose of this puzzle's theme?)RAZORBLADEIt may be double-edgedHOMMEALONEDouble feature about burglars and a French bachelor?BETTORHALFFirst leg of a daily double?MARTINGALEDouble-up betting systemJAMESMCAINDouble Indemnity authorSTIFFDRINKDouble shot, sayFIFTHWHEEL*Double-date extraACTIONHEROFilm role usually requiring a stunt doublePAMSHRIVERRecord-setting doubles champ