To complain so may be common all over the world (12)

I believe the answer is:

cosmopolitan

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'common all over the world' is the definition.
I can't tell whether this definition defines the answer.

'to complain so may be' is the wordplay.
'may be' indicates anagramming the letters.
'to'+'complain'+'so'='tocomplainso'
'tocomplainso' anagrammed gives 'COSMOPOLITAN'.

Can you help me to learn more?

(Other definitions for cosmopolitan that I've seen before include "international" , "all around the world" , "Familiar with different cities and cultures" , "Familiar with many cultures" , "cocktail for a > man of the world" .)

I've seen this clue in The Telegraph and The Globe and Mail.

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