Cuba tampered with radar signals from sea-pike (9)
I believe the answer is:
barracuda
'cuba' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for barracuda that I've seen before include "big fish" , "Marine attacker" , "Vicious swimmer" , "Voracious marine fish" , "Large predatory sea fish" .)