6a "Miles 14 to 26, heading for glory that's brief" (5)
T?O?G
Assuming I've got answers to 14 and 26 right, i.e. TANTRUM and WASPS, and that they're relevant here, I'm still stumped.
It looks like THONG which would give brief, but I can't see the THON bit at all.
Any help much appreciated