Some in Mostar mad about ships (6)

I believe the answer is:

armada

'ships' is the definition.
(group of ships)

'some in mostar mad about' is the wordplay.
'some in' says the answer is hidden in the clue.
'ARMADA' can be found hidden inside 'mostar mad about'.

(Other definitions for armada that I've seen before include "1588 sea battle" , "lot of craft" , "vessels" , "Large flotilla" , "Fighting unit" .)

I've seen this clue in The Sun.

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