Like a photograph of some jelly (5)
I believe the answer is:
aspic
'some jelly' is the definition.
(aspic is a kind of jelly)
'like a photograph' is the wordplay.
'like' becomes 'as'.
'a photograph' becomes 'pic' (short for picture).
'as'+'pic'='ASPIC'
'of' is the link.
(Other definitions for aspic that I've seen before include "Savoury jelly used to coat eggs etc" , "Jelly based on fish or meat stock" , "Savoury jelly for coating meat, eggs etc" , "Ending of Marlowe's thriller" , "Gelatin product" .)