Need a little time (8)

I believe the answer is:

shortage

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'need a little time' is the definition.
'shortage' can be an answer for 'need' (I've seen this before). I'm not certain of the 'a little time' bit.

'little time' is the wordplay.
'little' becomes 'short' (similar in meaning).
'time' becomes 'age' (an age is a period of time).
'short'+'age'='SHORTAGE'

Can you help me to learn more?

(Other definitions for shortage that I've seen before include "Need" , "Her goats (anag)" , "Dearth, lack" , "may put price up" , "Lack, deficiency" .)

I've seen this clue in The Sun.

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