Not just Edward oddly admitted to wearing tiny pants (10)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

EWR ( letters 1, 3 and 5 [oddly] of E D W A R D) contained in (admitted to) ( IN [wearing] + THONG [A skimpy article of beachwear, worn by men or women, consisting of thin strips of leather or cloth attached to a piece of material that covers the genitals while leaving the buttocks bare; tiny pants])