Mine got a goal ages back (1,4,4,3)

'mine' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'a goal ages back' is the wordplay.
I cannot quite see how this works, but
'a' is within the answer.
'ages' could be 'long' and 'long' is found in the answer.
'back' could be 'ago' ('years back' means 'years ago') and 'ago' is located in the answer.
The remaining letters 'time' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'got' acts as a link.

Can you help me to learn more?