The ghost of Hampton (7)
I believe the answer is:
phantom
'the ghost' is the definition.
(I've seen this before)
'of hampton' is the wordplay.
'of' is an anagram indicator (the answer comes from or 'of' the letters).
'hampton' with letters rearranged gives 'PHANTOM'.
(Other definitions for phantom that I've seen before include "Blush" , "Illusion (at the opera?)" , "RR" , "shadow of his former self?" , "Wraith" .)