Boss, leader (5)

I think it could be either:

Which length description are you looking for?:

chief

This clue is a double definition.

'boss' is the first definition.
(synonyms)

'leader' is the second definition.
(chief is a kind of leader)

(Other definitions for chief that I've seen before include "Tribal head" , "Leader, head" , "cardinal" , "Head of a native American tribe" , "Principal" .)

I've seen this clue in The Sun and The Times.

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