Tiny tree ruined for all time (8)

I believe the answer is:

eternity

'all time' is the definition.

'tiny tree ruined' is the wordplay.
'ruined' indicates anagramming the letters.
'tiny'+'tree'='tinytree'
'tinytree' is an anagram of 'ETERNITY'.

'for' acts as a link.

(Other definitions for eternity that I've seen before include "Wolfgang Amadeus -" , "Forever in entirety" , "timelessness" , "Endless duration" , "Entirety (anag.)" .)

I've seen this clue in The Irish Independent.

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