Crossword Genius

Strange graduate routine (5)

Ross

I believe the answer is:

rumba

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'routine' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'strange graduate' is the wordplay.
'strange' becomes 'rum' (similar in meaning).
'graduate' becomes 'BA' (someone with a Bachelor of Arts degree).
'rum'+'ba'='RUMBA'

Can you help me to learn more?

(Other definitions for rumba that I've seen before include "music one can dance to" , "Latin beat" , "South American dance" , "Lively Cuban dance" , "Style of dance" .)

I've seen this clue in The Mirror and The Daily Express.
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