Light, refreshing tins of beer unopened (3,2,4)

I believe the answer is:

set on fire

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

'refreshing tins of beer unopened' is the wordplay.
'refreshing' is an anagram indicator.
'unopened' means to remove the first letter.
'beer' with its initial letter taken away is 'eer'.
'tins'+'of'+'eer'='tinsofeer'
'tinsofeer' with letters rearranged gives 'SET ON FIRE'.

(Another definition for set on fire that I've seen is " Light".)

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app