Strong; very (6)

I believe the answer is:

mighty

This clue is a double definition.

'strong?' is the first definition.
(thesaurus)

'very' is the second definition.
('mighty' can be a synonym of 'very')

(Other definitions for mighty that I've seen before include "Very powerful/strong" , "Large" , "Powerful - huge" , "Having great strength" , "Strong, powerful" .)

I've seen this clue in the Evening Standard and The Telegraph.

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