5 clues share a missing definition (6 if you include 11 Across)
Across
1 Work on short revolution before the end of hostilities (7) 5 Takes a risk on popular lists (7) 9 South American in fine area for port (5) 10 The essence of being bloodsuckers welcoming fresh offer (4,5) 11 After reconstruction, supply12 Olympian queen in the raw? (4) 14 Usual good game of golf gives area for agreement (6,6) 18 Demands from audience caught everybody in the end (7,5) 21 Tidy profit across America (4) 22 On a trip with coach that’s educational! (4,6) 25 Manufacturer of Thetford in bits? (5,4) 26 Back in London, a growing music producer (5) 27 Stash seen in corner of Mediterranean island (7) 28 Rave about North America being the gateway to hell (7)