Awkward matter of stolen drugs Castro oddly ignored (3,6)
I believe the answer is:
hot potato
'awkward matter' is the definition.
(I've seen this before)
'stolen drugs castro oddly ignored' is the wordplay.
'stolen' becomes 'hot' (I've seen this before).
'drugs' becomes 'pot' (slang term for mariujana).
'oddly ignored' indicates alternate letters.
The alternating letters of 'castro' are 'ato'.
'hot'+'pot'+'ato'='HOT POTATO'
'of' acts as a link.
(Other definitions for hot potato that I've seen before include "controversial political issue?" , "Situation likely to cause trouble, like thermal spud" , "Topical, dangerous, issue" , "Difficult matter" , "Burning issue" .)