Revolutionary Guards like somebody logical (8)
I believe the answer is:
reasoned
'logical' is the definition.
(reasoned can mean logical or sensible)
'revolutionary guards like somebody' is the wordplay.
'revolutionary' becomes 'red' (red can informally mean communist).
'guards' indicates putting letters inside (inserted letters are guarded).
'like' becomes 'as'.
'somebody' becomes 'one' (I've seen this in another clue).
'as'+'one'='asone'
'red' placed around 'asone' is 'REASONED'.
(Other definitions for reasoned that I've seen before include "sound" , "Dear ones (anag)" , "Thought logically through or deduced" , "Spoke logically, thought and drew conclusions" , "Based on logic" .)