Assurance

5 clues
Pledge
Promise
Certainty
Guarantee
Guarantee — belief in oneself
Similar answers:
Aberrance
Airfragrance
Airfrance
Allinfrance
Anassumedname
Anatolefrance
Appearance
Appearancemoney
Appearances
Assuage
Assuaged
Assuages
Assuasive
Assuch
Assumable
Assume
Assumeadisguise
Assumearole
Assumed
Assumedamen