We hear French tower offers good look (6)
I believe the answer is:
eyeful
'good look' is the definition.
(I've seen this in another clue)
'we hear french tower' is the wordplay.
'we hear' indicates a 'sounds like' (homophone) clue.
'french tower' becomes 'Eiffel' (the Eiffel Tower in Paris).
'eiffel' sounds like 'EYEFUL'.
'offers' is the link.
(Other definitions for eyeful that I've seen before include "Attractive sight" , "great sight" , "As much as can be taken in by a look" , "Fascinating sight" , "One who is well worth looking at" .)