Gives away accommodation on ship - is that something to gloss over? (4,4)

I believe the answer is:

lets slip

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'gives away accommodation on ship is that something to gloss over?' is the definition.
I can't judge whether this definition defines the answer.

'gives away accommodation on' is the wordplay.
'gives' becomes 'lets' (letting is a kind of giving).
'away accommodation' becomes 'slip' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' says to put letters next to each other.
'lets'+'slip'='LETS SLIP'

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I've seen this clue in the Irish Times.

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