24 down
Like
Top
Gun
pilot’s
taxiing
speed
(approximately)
(5)
Like Top Gun pilot’s taxiing speed (approximately) (5)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
Look at Like Top Gun pilot's — that's your definition, giving you that swaggering fighter-pilot quality. The wordplay builds it up as MACH (a speed unit, as used for taxiing on a runway... well, rolling very fast) followed by O, that little round shape standing in for "approximately".