Strange seminar for servicemen (7)

I believe the answer is:

marines

'for servicemen' is the definition.
(marine is a kind of serviceman)

'strange seminar' is the wordplay.
'strange' indicates an anagram.
'seminar' is an anagram of 'MARINES'.

(Other definitions for marines that I've seen before include "Seminar for American troops" , "Naval service" , "elite corps" , "Troops trained to serve on land or sea" , "forces" .)

I've seen this clue in the Evening Standard.

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