Groan -- Edward's spotted (7)
I believe the answer is:
sighted
'spotted' is the definition.
(I've seen this before)
'groan edward's' is the wordplay.
'groan' becomes 'sigh' (I've seen this before).
'edward' becomes 'ted'.
'sigh'+'ted'='SIGHTED'
(Other definitions for sighted that I've seen before include "Noticed" , "Viewers are" , "able to observe" , "with a view?" , "Saw, observed" .)