Quick to show naval power (5)

I believe the answer is:

fleet

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

'quick' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for fleet that I've seen before include "Naval force or collection of buses" , "Ships - quick!" , "Swift like naval force" , "Squadron" , "Quickly pass" .)

I've seen this clue in The Irish Independent.

Want a hint initially instead of a full solution? Install my app