Obscure little volume pair come up for (5)

I believe the answer is:

cloud

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'volume pair come up for' is the definition.
I can't tell whether this defines the answer.

'obscure little' is the wordplay.
'obscure' becomes 'cloudy' (I've seen this before).
'little' means to remove the last letter (the word is not quite complete).
'cloudy' with its last letter taken away is 'CLOUD'.

Can you help me to learn more?

(Other definitions for cloud that I've seen before include "Cover" , "Make unclear" , "Visible mass floating above" , "Dull spot" , "''I wandered lonely as a ...'' (Wordsworth)" .)

I've seen this clue in The Irish Times.

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