Like a leopard that's seen (7)
I believe the answer is:
spotted
This clue is a double definition.
'like a leopard' is the first definition.
(I've seen this in another clue)
'seen' is the second definition.
'that's' acts as a link.
(Other definitions for spotted that I've seen before include "Noticed" , "Saw; speckled" , "Espied" , "Saw, caught sight of" , "As Dick may be" .)