Declines important information Nazi group has pinched (9)
I believe the answer is:
slowdowns
'declines' is the definition.
Although both the answer and definition are plural nouns, I cannot understand how one could define the other.
'important information nazi group has pinched' is the wordplay.
I cannot really see how this works, but
'information' could be 'lowdown' (the low-down can mean information or news) and 'lowdown' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for slowdowns that I've seen is " situations prior to traffic snarl-ups?".)