Make it a prison, a badly spelt goal (10)

I believe the answer is:

aspiration

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'goal' is the definition.
(I've seen this before)

'make it a prison a' is the wordplay.
'make' is an anagram indicator.
'it'+'a'+'prison'+'a'='itaprisona'
'itaprisona' with letters rearranged gives 'ASPIRATION'.

'badly spelt' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for aspiration that I've seen before include "Dream" , "Eager desire" , "goal" , "Hope" , "With which to announce Hammers' first" .)

I've seen this clue in the Sydney Morning Herald.

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