Steers out of control? (8)
I believe the answer is:
stampede
'steers out of control?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stampede that I've seen before include "Beastly charge" , "Deems apt to have flight of cattle" , "Panic-stricken charge of cattle" , "Panic-driven rush of herd of animals" , "Wild run of frightened cattle" .)