Crossword Genius

Curse founder’s lack of vision with these (10)

Ross

I believe the answer is:

blindfolds

'lack of vision with these' is the definition.
(blindfolds block out vision)

'curse founder's' is the wordplay.
'curse' becomes 'blind'.
'founder's' becomes 'fold's' (founder can mean to fail or fold).
'blind'+'folds'='BLINDFOLDS'

(Another definition for blindfolds that I've seen is " Blocks view of".)

I've seen this clue in The Times.
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