Very small menu: it needs changing (6)
I believe the answer is:
minute
'very small' is the definition.
(I've seen this before)
'menu it needs changing' is the wordplay.
'needs changing' is an anagram indicator (I've seen this in other clues).
'menu'+'it'='menuit'
'menuit' anagrammed gives 'MINUTE'.
(Other definitions for minute that I've seen before include "Little -- 60 18 across" , "60 seconds; tiny" , "official memorandum" , "Extremely small" , "Brief jotting" .)