Oh dear, son-in-law implicated in malicious burning of property (5)
I believe the answer is:
arson
'malicious burning of property' is the definition.
(I've seen this before)
'oh dear son-in-law implicated' is the wordplay.
'ARSON' is hidden in amongst the letters.
But, I am unsure how this is indicated.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for arson that I've seen before include "Criminal activity" , "Sonar (anag.)" , "criminal fire-raising" , "A burning crime" , "Iniquitous behaviour" .)