25 across
Flying
weight
non-negotiable?
(2,3,4)
Flying weight non-negotiable? (2,3,4)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
Flying is the definition here. The letters of 'weight' and 'non' are jumbled up, with 'negotiable' acting as the anagram indicator, to spell out ON THE WING.