New menu inside has to stimulate (7)
I believe the answer is:
freshen
'to stimulate' is the definition.
(thesaurus)
'new menu inside' is the wordplay.
'new' becomes 'fresh' ('fresh' can be similar in meaning to 'new').
'inside' indicates the central letters.
The middle letters of 'menu' are 'en'.
'fresh'+'en'='FRESHEN'
'has' acts as a link.
(Other definitions for freshen that I've seen before include "(Wind) get stronger" , "Re-invigorate" , "(Of wind) become stronger and colder" , "Grow stronger (wind)" , "Make less stale" .)