Answer: aclue

AnswerCrossword Clue
ACLUE"I don't have ..."
ACLUEWithout .. (totally confused)
ACLUE"Without ....." (1988 film)
ACLUE"I haven't ..."
ACLUE'I haven't -- ('No idea!')!'
ACLUE'I haven't --' ('Beats me')
ACLUEWithout ... (totally lost)
ACLUEDoesn't have ....: is stumped
ACLUEWhat an airhead lacks