Cut into pieces parasitic insects inside coat of seed (6)
I believe the answer is:
sliced
'cut into pieces' is the definition.
'sliced' can be an answer for 'cut' (I've seen this in another clue). I'm not sure about the 'into pieces' bit.
'parasitic insects inside coat of seed' is the wordplay.
'parasitic insects' becomes 'lice' (I've seen this in another clue).
'inside' is an insertion indicator.
'coat of' suggests removing the centre.
'seed' with its middle removed is 'sd'.
'lice' going within 'sd' is 'SLICED'.
Can you help me to learn more?
(Other definitions for sliced that I've seen before include "Thinly cut" , "Made a clean cut through" , "Hit a ball so as to impart a spin" , "Cut into thin sections" , "Make a clean cut through" .)