Prevented from making a full report (7)- Baffled? As in silencer?
Companion entertained by a French host (9) CH – Companion of honour + A Norman- a French = Anchorman? – host
Operatic heroine hides in a barrel, strange? (8) Norma- operatic heroine + a + Bl- barrel = Abnormal? – strange
Long shot Work it around, silence is golden (7)
Op - work ti – it around, Mum – silence = optimum – the best – golden?
This gives BDANOMAL for which I cannot make an anagram, so 3 must be wrong.