Crossword Genius

Reduce some anguish or tension (7)

Ross

I believe the answer is:

shorten

'reduce' is the definition.
('shorten' can be a synonym of 'reduce')

'some anguish or tension' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'SHORTEN' is hidden within 'anguish or tension'.

(Other definitions for shorten that I've seen before include "Cut back" , "Truncate" , "Put extra fat" , "Prune" , "Abbreviate" .)

I've seen this clue in The Telegraph.
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