Try to get the temperature raised to the same degree (4,1,4)

'the temperature raised to the same degree' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'try to get' is the wordplay.
I cannot really see how this works, but
'try' could be 'shot' (both can mean an attempt) and 'shot' is found within the answer.
'get' could be 'have' (synonyms) and 'have' is located in the answer.
A single letter 'a' remains which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?