A CRJ200 CREW CLRED TO THEIR CVG GATE INCURRED RWY 18 AS PER THEIR CLRNC CAUSING A SHORT FINAL ACFT TO EXECUTE A GO AROUND.

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OUR FLT LANDED CVG RWY 18R. CLRED TO TAXI VIA TXWYS B AND K TO HOLD SHORT OF RWY 18C. MONITORING TWR FREQ 118.3 AND APCHING RWY 18C ON TXWY K; CVG TWR ISSUED A CLRNC FOR; 'ACR X TO CROSS RWY 18C; TURN L ON TXWY D AND CONTACT TWR AT SPOT 8 S.' THE CAPT BEGAN TO SLOW THE ACFT APCHING THE RWY 18C HOLD SHORT LINE SO AS TO ALLOW TIME FOR CLARIFICATION OF THE XING CLRNC. CVG TWR ISSUED A CLARIFICATION USING OUR FLT NUMBER AND REISSUED OUR CLRNC TO CROSS RWY 18C. AS CLRNC WAS BEING RECEIVED TO CROSS; LNDG TFC WAS OBSERVED AND NOT CONSIDERED TO BE A FACTOR. AT THIS TIME WE PROCEEDED TO CROSS THE RWY AS ATC HAD CLRED. AT THIS TIME; COMPANY ACFT ON FINAL QUERIED ATC ON THE TIMING OF OUR XING AND IF SPACING WAS OK. ATC'S RESPONSE WAS TO ISSUE US A CLRNC TO STOP. WE IMMEDIATELY STOPPED; AT WHICH POINT OUR ACFT WAS ALREADY ACROSS THE HOLD SHORT LINE FOR RWY 18C. THE ACFT ON FINAL ELECTED TO EXECUTE A GO AROUND. OUR FLT PROCEEDED TO THE GATE WITHOUT FURTHER INCIDENT. WITH THE RECENT OPENING OF RWY 18R IN CVG; ATC IS NOW REQUIRED TO MANAGE AN ADDITIONAL POINT IN WHICH RWY 18C IS REGULARLY CROSSED. IT ADDS AN ADDITIONAL CONSIDERATION AS THIS RELATES TO TIMING AND SPACING WITH ARRIVALS AND DEPS TO RWY 18C AS WELL AS DEPS FROM RWY 27. THIS INCREASED WORKLOAD REQUIRES THAT EXTREME VIGILANCE AND AWARENESS BE MAINTAINED BY ATC AND FLT CREWS AT ALL TIMES AS WE ALL CONTINUE TO GET USED TO WORKING IN THIS NEW ENVIRONMENT.