Crossword Genius

Southern wine brewed for strength (5)

Ross

I believe the answer is:

sinew

'strength' is the definition.
(sinew is a kind of strength)

'southern wine brewed' is the wordplay.
'southern' becomes 's' (abbreviation).
'brewed' is an anagram indicator.
'wine' with letters rearranged gives 'inew'.
's'+'inew'='SINEW'

'for' acts as a link.

(Other definitions for sinew that I've seen before include "source of physical strength", "As synonym for 'strength'", "Tendon, for example", "power source", "Inelastic tissue".)

I've seen this clue in The Times.
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