Aggressive type passionate against Germany (9)
I believe the answer is:
warmonger
'aggressive type' is the definition.
(warmonger matches up with the definition aggressive type)
'passionate against germany' is the wordplay.
'passionate' becomes 'warm' (I've seen this before).
'against' becomes 'on' (on can mean by or up against).
'germany' becomes 'ger' (I've seen this in other clues).
'warm'+'on'+'ger'='WARMONGER'
(Other definitions for warmonger that I've seen before include "Bellicose type" , "Jingoist" , "Hawk" , "Belligerent person" , "Hitler, perhaps" .)