Sound means of detecting arson? (5)
I believe the answer is:
sonar
'sound means' is the definition.
'sonar' can be an answer for 'means' (I have seen 'Means of detecting' mean 'sonar' so perhaps 'means' could also mean 'sonar'). I am not certain of the 'sound' bit.
'detecting arson?' is the wordplay.
'arson' anagrams to 'SONAR'.
Though, I am not clear how the anagram is indicated.
'of' is the link.
Can you help me to learn more?
(Other definitions for sonar that I've seen before include "Underwater echo sounder" , "Undersea sensing system" , "Detection system at sea" , "System to locate underwater objects" , "Echo-sounding equipment" .)