6d Witty retort(s) ! (8) ? E ? ? ? T ? E
11a Closed? Darned awful ! (6) N ? ? ? E ?
12a An explosive start for British engineering? (1-4) ? B ? A ?
Any help please?
RTE's clues are sometimes not quite correct :)
Maybe darned (awful ) is meant to mean anagram of "darned" but it is not correct to become "neared" but I cannot see any other answer to fit.