Crossword Genius

Open a container (4)

Ross

I believe the answer is:

ajar

'open' is the definition.
(similar in meaning)

'a container' is the wordplay.
'container' becomes 'jar' (jar is a kind of container).
'a'+'jar'='AJAR'

(Other definitions for ajar that I've seen before include "(Of door) slightly open" , "letting in a little light?" , "Part-open" , "partly opened" , "Not quite closed" .)

I've seen this clue in The Mirror, The Daily Express and The Globe and Mail.
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