It's wrong for the French to make top-hats! (5)
I believe the answer is:
tiles
'top-hats' is the definition.
I can't tell whether this definition defines the answer.
'it's wrong for the french to' is the wordplay.
'wrong' is an anagram indicator.
'for' is a charade indicator (letters next to each other).
'the french' becomes 'le' ('the' in French).
'to' becomes 's' (I am not sure about this - if you are sure you should believe this answer much more).
'it' is an anagram of 'ti'.
'ti'+'le'+'s'='TILES'
'make' acts as a link.
Can you help me to learn more?
(Other definitions for tiles that I've seen before include "Small oblong slabs used in roofing" , "Thin flat slabs, for roofing perhaps" , "Thin flat slabs of fired clay" , "Roofing materials" , "Glazed rectangles used to cover walls or floors" .)