Get hostile, concealing guiding beliefs (5)

I believe the answer is:

ethos

'guiding beliefs' is the definition.
(I've seen this in another clue)

'get hostile concealing' is the wordplay.
'concealing' indicates a hidden word.
'ETHOS' can be found hidden inside 'get hostile'.

(Other definitions for ethos that I've seen before include "Distinctive spirit - character" , "Distinctive principles of an era, group, etc" , "Character of a community or age" , "Characteristic spirit of a community - for those" , "Philosophy" .)

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

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