Alarmists seeing Germans score in a frenzy (12)
I believe the answer is:
scaremongers
'alarmists' is the definition.
(scaremonger is a kind of alarmist)
'germans score in a frenzy' is the wordplay.
'in a frenzy' indicates anagramming the letters.
'germans'+'score'='germansscore'
'germansscore' is an anagram of 'SCAREMONGERS'.
'seeing' acts as a link.
(Other definitions for scaremongers that I've seen before include "Alarmists" , "People who cause fear or fright" .)