Jog naked around the centre of Margate (5)
I believe the answer is:
nudge
'jog' is the definition.
(I've seen this before)
'naked around the centre of margate' is the wordplay.
'naked' becomes 'nude' (synonyms).
'around' is an insertion indicator.
'the centre of' indicates the central letters.
The central letter of 'margate' is 'g'.
'nude' placed around 'g' is 'NUDGE'.
(Other definitions for nudge that I've seen before include "Push gently" , "Push; prompt" , "Remind (with the elbow?)" , "Gentle prod" , "Encouraging prompt" .)