Every other Pole reporting to a Swedish couple is sacked (9)
I believe the answer is:
plundered
'sacked' is the definition.
('plunder' can be a synonym of 'sack')
'every other pole reporting to a swedish couple' is the wordplay.
'every other' means one should take alternating letters (every other letter).
'reporting to' becomes 'under' (I've seen this in another clue).
'a swedish couple' becomes 'ed' (I can't explain this - if you can you should believe this answer much more).
The alternating letters of 'pole' are 'pl'.
'pl'+'under'+'ed'='PLUNDERED'
'is' acts as a link.
Can you help me to learn more?
(Another definition for plundered that I've seen is " Ransacked".)