German, let down in the end, scowls and scowls (7)

I believe the answer is:

glowers

'scowls' is the definition.
(I've seen this in another clue)

'german let down in the end scowls' is the wordplay.
'german' becomes 'g' (abbreviation).
'let down' becomes 'lower' (synonyms).
'in the end' says to take the final letters.
The last letter of 'scowls' is 's'.
'g'+'lower'+'s'='GLOWERS'

'and' acts as a link.

(Another definition for glowers that I've seen is " Scowls".)

I've seen this clue in The Everyman puzzle in The Observer.

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