Rogue can't hope for memorial (8)
I believe the answer is:
cenotaph
'memorial' is the definition.
(cenotaph is a kind of memorial)
'rogue can't hope' is the wordplay.
'rogue' is an anagram indicator.
'cant'+'hope'='canthope'
'canthope' is an anagram of 'CENOTAPH'.
'for' is the link.
(Other definitions for cenotaph that I've seen before include "Feature of Whitehall" , "Whitehall memorial" , "Monument built to honour soldiers who died in war" , "construction in Whitehall" , "Tomb-like monument to people buried elsewhere" .)