Aflea

4 clues
Wouldn't hurt
Put ____ in one's ear
Feydeau's "___ in Her Ear
___ in Her Ear" (classic Georges Feydeau farce)
Similar answers:
Aaf
Aafair
Abaf
Abaft
Abearleader
Abelgianwaffles
Abundantlyclear
Abusinessaffair
Abuyablealternative
Acafeinthecrowd
Acarterandaford
Accordionpleats
Acleandesk
Aclear
Acleorafeasti
Addleadder
Adeaf
Adeleastaire
Adraft
Adsfromafar