Give about a quid for something Shakespearean (4)

I believe the answer is:

play

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'quid for something shakespearean' is the definition.
I can't tell whether this definition defines the answer.

'give about a' is the wordplay.
'give' becomes 'ply' (plying is a kind of giving).
'about' means one lot of letters goes inside another.
'ply' going around 'a' is 'PLAY'.

Can you help me to learn more?

(Other definitions for play that I've seen before include "Amuse oneself - drama" , "Theatre performance" , "Theatrical production" , "Frolic" , "Participate in games or sport" .)

I've seen this clue in the Evening Standard.

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