Bluing

5 clues
Wash whitener
Laundry whitener
Laundry additive
Old bleach alternative
Laundry whitener, oddly enough
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Aaarating
Aahing
Aameeting
Aameetings
Aaronspelling
Abadending
Abandoning
Abashing
Abasing
Abathingbeauty
Abating
Abbashitsingle
Abbreviating
Abclistening
Abducting
Abetting
Abhorring
Abiding
Abidingfaith
Abinge