The first head of government (7)

I believe the answer is:

premier

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'the first' is the first definition.
(I've seen this before)

'head of government' is the second definition.
'premier' can be an answer for 'head' (thesaurus). I am not certain of the 'of government' bit.

Can you help me to learn more?

(Other definitions for premier that I've seen before include "Which is having precedence" , "Aberdeen or Salisbury?" , "Chief minister" , "Foremost" , "Earliest" .)

I've seen this clue in The Globe and Mail.

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