17d.."smart step " seems the only answer
I think 27a is "bang away"(as in 'fire away') This wil allow "leaped"for 23d.
24d/25a I have "angry glares" ( glares can be made from the letters with the remainder denoting "angry") The L of glares would allow "last" for 26d
I am left with 28a reading " -s-e member " Any help please?