French veto includes universal type of word (4)
I believe the answer is:
noun
'type of word' is the definition.
(I've seen this before)
'french veto includes universal' is the wordplay.
'french veto' becomes 'non' (French for 'no', a word which might veto something).
'includes' means one lot of letters goes inside another.
'universal' becomes 'U' (film certificate).
'non' going around 'u' is 'NOUN'.
(Other definitions for noun that I've seen before include "Word identifying person, place or thing" , "Word used as a name for something or person" , "Category of word" , "Word referring to person, place or thing" , "Person, place, thing, state or quality?" .)