Go round in dogtrot at event (6)
I believe the answer is:
rotate
'go round' is the definition.
(I've seen this before)
'in dogtrot at event' is the wordplay.
'in' indicates a hidden word.
'ROTATE' is hidden within 'dogtrot at event'.
(Other definitions for rotate that I've seen before include "wheel" , "Whisk round" , "Turn around as on axle or spit" , "Turn around on axis or central point" , "Pivot" .)