Signing

1 clue
Not in the dark
Similar answers:
Abandoning
Abclistening
Aborning
Abstaining
Adjoining
Adorning
Adrywhiteseasoning
Advanceplanning
Advancewarning
Affairwarning
Airconditioning
Airlinecallsign
Airsign
Airsigns
Alewarning
Alightningbug
Aligning
Alining
Alittlelearning
Alonzomourning