Line of children, one appearing to be in tears? (9)

I believe the answer is:

crocodile

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'line of children' is the definition.
(crocodile can mean a line of school children)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for crocodile that I've seen before include "Procession of schoolchildren" , "Tropical reptile" , "line of schoolkids?" , "handbag material?" , "False tears, possibly" .)

I've seen this clue in The Times.

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