Jog in a revealing state around Germany's capital (5)
I believe the answer is:
nudge
'jog' is the definition.
(I know that jog can be written as nudge)
'in a revealing state around germany's capital' is the wordplay.
'in a revealing state' becomes 'nude' (in the nude).
'around' indicates putting letters inside.
'capital' suggests taking the first letters.
The first letter of 'germanys' is 'g'.
'nude' going around 'g' is 'NUDGE'.
(Other definitions for nudge that I've seen before include "Light touch or push" , "Jogger" , "Gently encourage" , "Shove" , "Remind, prompt gently" .)