Jog in the altogether round centre of Rugby (5)
I believe the answer is:
nudge
'jog' is the definition.
(thesaurus)
'in the altogether round centre of rugby' is the wordplay.
'in the altogether' becomes 'nude' (I've seen this before).
'round' indicates putting letters inside.
'centre of' indicates the central letters.
The middle letter of 'rugby' is 'g'.
'nude' going around 'g' is 'NUDGE'.
(Other definitions for nudge that I've seen before include "suggestive move" , "Gentle push" , "Slight push" , "Push; prompt" , "Jostle" .)