Crossword Genius

Electronic piloting system acquired by Delta, cannily (5)

Ross

I believe the answer is:

tacan

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

'electronic piloting system acquired' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'delta cannily' is the wordplay.
'TACAN' is hidden in amongst the letters.
But, I am uncertain how the hidden word is indicated.

'by' acts as a link.

Can you help me to learn more?

(Another definition for tacan that I've seen is " Navigation system".)

I've seen this clue in The Times.
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