Extension

6 clues
Annexe
File name add-on
Taxpayer request
Building addition
Anxiety no longer felt?
Pressure of dealing with a former spouse?
Similar answers:
Ambidexter
Anextensionofmy
Apprehension
Ascension
Ascensions
Atensionspan
Basetension
Becircumflexte
Carsuspension
Coextensiveness
Comprehension
Condescension
Dexter
Dexterity
Dimension
Dimensional
Dimensions
Dissension
Distension
Economicexpansion