One removes presence of army before raid in Germany (11)
I believe the answer is:
ghostbuster
'one removes presence' is the definition.
(removal of a spiritual presence)
'army before raid in germany' is the wordplay.
'army' becomes 'host' (host is a kind of army).
'before' says to put letters next to each other.
'raid' becomes 'bust' (synonyms).
'in' indicates putting letters inside.
'germany' becomes 'ger' (I've seen this in other clues).
'host'+'bust'='hostbust'
'hostbust' put within 'ger' is 'GHOSTBUSTER'.
'of' is the link.
(Another definition for ghostbuster that I've seen is " Poltergeist killer?".)