Just how Lady Godiva rode (6)
I believe the answer is:
barely
This clue is a double definition.
'just' is the first definition.
('barely' can be a synonym of 'just')
'how lady godiva rode' is the second definition.
(as in naked)
(Other definitions for barely that I've seen before include "as Godiva rode?" , "how streakers like to act?" , "how naturists exist" , "Just about, nothing to spare" , "By a small margin" .)