Crossword Genius

Exhausting at university struggling to make ends meet (4,2)

Ross

I believe the answer is:

hard up

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'struggling to make ends meet' is the definition.
(I've seen this before)

'exhausting at university' is the wordplay.
'exhausting' becomes 'hard' (I can't justify this - if you can you should believe this answer much more).
'at university' becomes 'up' (slang term meaning at university).
'hard'+'up'='HARD-UP'

Can you help me to learn more?

(Other definitions for hard up that I've seen before include "Out of funds - it's tough" , "Short of cash" , "Badly-off" , "Being without cash" , "Struggling to make ends meet" .)

I've seen this clue in The Guardian.
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