Musthave

3 clues
Requires
Necessity
Absolute necessity, perhaps
Similar answers:
Acloseshaveaway
Adamdidnthaveto
Aftershave
Aftershavelotion
Aftershavetonic
Agreatwaytohave
Aiolihaveeyesforyou
Allihaveto
Allthingsmust
Alotteryhitmust
Amuseumwheretheyhave
Amust
Amustardtoavoid
Amustsee
Andhave
Andwhetherpigshavewings
Animustnt
Anytimeyouhavea
Aslongaswehavea
Bankidhave