Appreciate help please with 20a Sign of redundancy (3) L?O or L?U.(Depends if 15d Shameless is "immodest" or "impudent"). Could be Leo - clearly a sign, but redundancy?
Thanks to Henry, Jimbo and Helena. Think I'll go with Leo unless anyone can advise otherwise. Finally just to check 27a please. "Great toughness" (4) I have "grit", but the connection seems a bit vague. Anyone agree?