Crossword Genius

Somehow they lack small openers (9)

Ross

I believe the answer is:

latchkeys

'openers' is the definition.
(keys open locks)

'somehow they lack small' is the wordplay.
'somehow' indicates anagramming the letters.
'small' becomes 's' (abbreviation - e.g. clothes size).
'they'+'lack'='theylack'
'theylack' anagrammed gives 'latchkey'.
'latchkey'+'s'='LATCHKEYS'

(Another definition for latchkeys that I've seen is " Opening articles".)

I've seen this clue in The Telegraph.
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