Threw in (5)

I think it could be either:

Which length description are you looking for?:

5,2

added

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

This is all the clue.

(Other definitions for added that I've seen before include "Said" , "Summed up" , "Appended; totalled" , "Extra" , "Contributed" .)

I've seen this clue in the Newsday, the King Feature Syndicate, the Universal, The Wall Street Journal and the LA Times.

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