Character of intricate particle (10)
I believe the answer is:
complexion
'character' is the definition.
(I've seen this before)
'intricate particle' is the wordplay.
'intricate' becomes 'complex' (similar in meaning).
'particle' becomes 'ion' (I've seen this in another clue).
'complex'+'ion'='COMPLEXION'
'of' is the link.
(Other definitions for complexion that I've seen before include "Face" , "Skin's tone and texture" , "Look" , "Nature" , "character" .)