Cry, as time short for rejigging study of the universe (14)

I believe the answer is:

astrochemistry

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'rejigging study of the universe' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'cry as time short' is the wordplay.
'cry as time short' anagrams to 'ASTROCHEMISTRY'.
Though, I'm not sure how the anagram is indicated.

'for' is the link.

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