1d Plain boy like me, note (5) 2d An elf (in photos, that is) 3d Unusual sorts of soldier (4) 4d Unconvincing city state (4) 5d Reversed belt components 1a Large bottom vipers bit! (6) 9a River to cross, the first in Surrey Borders (4) 10a Short book about an attack (4)11a Seriously, a close home (2 words)