Crossword Genius

Come into service? (6)

Ross

I believe the answer is:

enlist

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

This might be a double definition.

'come into' is the first definition.
(thesaurus)

'service?' is the second definition.
Although both the answer and definition are verbs in their base form, I cannot see how they can define each other.

Can you help me to learn more?

(Other definitions for enlist that I've seen before include "augment army" , "Engage" , "Join up - tinsel (anag)" , "Join the armed forces" , "Join the military" .)

I've seen this clue in The Globe and Mail.
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