Cluedup

2 clues
Shrewd
Well informed (informal)
Similar answers:
Aaaautoclub
Aceofclubs
Aclu
Aclub
Aclue
Aclumsywaterboy
Actedup
Actedupon
Addedup
Addedupto
Adjointheclub
Agreedupon
Alarmcluck
Alarmclucks
Allbookedup
Alldolledup
Allfiredup
Allgussiedup
Alljokedup
Allkeyedup