Everybody in work exercise day ran (8)
I believe the answer is:
galloped
'ran' is the definition.
(gallop can mean to run fast)
'everybody in work exercise day' is the wordplay.
'everybody' becomes 'all' (all people).
'in' indicates putting letters inside.
'work' becomes 'go' (synonyms).
'exercise' becomes 'pe' (Physical Education).
'day' becomes 'd' (abbreviation for day).
'all' going into 'go' is 'gallo'.
'gallo'+'pe'+'d'='GALLOPED'
(Other definitions for galloped that I've seen before include "Moved fast like a horse" , "Rode fast" , "'I - - , Dirck - - ...' (Browning)" , "A peg doll (anag.)" , "Went quickly by horse" .)