Crossword Genius

Finally decide to get in contact (4,1,4)

Ross

I believe the answer is:

make a call

I'm a little stuck... Click here to teach me more about this clue!

'finally decide' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'get in contact' is the wordplay.
I cannot really understand how this works, but
'get' could be 'make' (making is a kind of getting) and 'make' is located in the answer.
'contact' could be 'call' and 'call' is found in the answer.
A single letter 'a' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

'to' is the link.

Can you help me to learn more?

I've seen this clue in The Irish Times.
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