Perhaps Berlin fertiliser manufacturer is short of time (8)

I believe the answer is:

composer

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'perhaps berlin' is the definition.
(I know this)

I cannot understand how the remainder of the clue works.

(Other definitions for composer that I've seen before include "Bach, Beethoven or Mozart?" , "A sedative" , "one to make notes" , "Arnold, perhaps" , "eg Ravel" .)

I've seen this clue in The Telegraph.

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