Help on these please
6d old comic sold as new comic (3,6) ??s ?????n
11a bond completely frozen, and almost trapped (8) a?l?????
17d one present is not two presents (7) n?w?e??
18d Wilfred's house in one part of windmill (7) i?a?h??
20d add lightweight fences to scrap (5,2) t????w ??