Jog naked, skirting centre of Tangier (5)
I believe the answer is:
nudge
'jog' is the definition.
(I've seen this before)
'naked skirting centre of tangier' is the wordplay.
'naked' becomes 'nude' (synonyms).
'skirting' means one lot of letters goes inside another.
'centre of' says to take the centre.
The middle letter of 'tangier' is 'g'.
'nude' going around 'g' is 'NUDGE'.
(Other definitions for nudge that I've seen before include "Gentle poke with elbow" , "Gentle encouragement" , "Push (with a wink?)" , "Remind, prompt gently" , "suggestive move" .)