Reports of Triad possibly sound, when heads make switch a concealed weapon (5,4)
I believe the answer is:
sword cane
'reports of triad' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'sound when heads make switch a concealed weapon' is the wordplay.
I cannot quite understand how this works, but
'switch' could be 'cane' (type of cane used for corporal punishment) and 'cane' is found in the answer.
'weapon' could be 'sword' (sword is a kind of weapon) and 'sword' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'possibly' is the link.
Can you help me to learn more?