English bully arrives outside port fighting activist (3-7)

I believe the answer is:

eco-warrior

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'fighting activist' is the definition.
'eco warrior' can be an answer for 'activist' (I've seen this before). I'm not sure about the 'fighting' bit.

'english bully arrives outside port' is the wordplay.
'english' becomes 'e' (abbreviation).
'bully' becomes 'cow' (cow can mean to bully or oppress).
'arrives' becomes 'arr' (abbreviation used in transport).
'outside' is an insertion indicator.
'port' becomes 'rio' (Rio de Janeiro is a port).
'arr' placed around 'rio' is 'arrior'.
'e'+'cow'+'arrior'='ECO-WARRIOR'

Can you help me to learn more?

(Other definitions for eco-warrior that I've seen before include "Activist" , "Militant greenie" , "Zealous environmentalist" .)

I've seen this clue in The Times.

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