Yes, or... start the rtw away from home, do the first part (ending at home), take a break, do the second part, return home on a separate ticket. Either way if you want to break the trip in two parts you are going to have to 'get there and back' on a separate ticket (paid or award).

Edited to add: Or, if budget and time permits, do nested OWEs. Some folk here nest two, even three rtws, mixing east/westbound directions... too much for me, who can't even manage one at a time without some serious planning, but some people claim that it can be done successfully.