The bosses are a shade different (5)

I believe the answer is:

heads

'the bosses' is the definition.

'a shade different' is the wordplay.
'different' indicates anagramming the letters.
'shade' is an anagram of 'HEADS'.

'are' is the link.

(Other definitions for heads that I've seen before include "Coin-tossing call" , "Leaders" , "Goes for" , "Ship's latrine; addicts" , "Obverse of a coin" .)

I've seen this clue in the Evening Standard.

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