Will it make one within orbit run? (4-3)

'will' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'it make one within orbit run?' is the wordplay.
I cannot quite see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found within the answer.
'one' could be 'a' (a thing is one thing) and 'a' is present in the answer.
'run?' could be 'r' (cricket abbreviation) and 'r' is found within the answer.
This explanation may well be incorrect...

Can you help me to learn more?