Crossword Genius

Age certain to produce obliteration (7)

Ross

I believe the answer is:

erasure

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

'age certain' is the wordplay.
'age' becomes 'era' (both can mean a long time).
'certain' becomes 'sure' (synonyms).
'era'+'sure'='ERASURE'

'to produce' is the link.

(Other definitions for erasure that I've seen before include "Effect of surface damage" , "Rubbing out - English synthpop duo" , "Obliteration of data" , "group from the 80s" , "clearing of tape" .)

I've seen this clue in The Telegraph.
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