Crossword Genius

Grouped in threes with Military Intelligence complete (9)

Ross

I believe the answer is:

terminate

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'complete' is the definition.
(thesaurus)

'grouped in threes with military intelligence' is the wordplay.
'grouped in threes' becomes 'ternate' (I am not sure about this - if you are sure you should believe this answer much more).
'with' is an insertion indicator.
'military intelligence' becomes 'MI' (as in MIa or MIt - British military intelligence).
'ternate' going around 'mi' is 'TERMINATE'.

Can you help me to learn more?

(Other definitions for terminate that I've seen before include "Stop" , "Cut short" , "Put an end to, finish" , "Conclude" , "Put an end to, discontinue" .)

I've seen this clue in the Sydney Morning Herald.
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