Look carefully, time not plentiful (5)

I believe the answer is:

scant

I'm a little stuck... Click here to teach me more about this clue!

'not plentiful' is the definition.
I can't judge whether this definition defines the answer.

'look carefully time' is the wordplay.
'look carefully' becomes 'scan' (I've seen this before. I am not sure about the 'carefully' bit.**).
'time' becomes 't'.
'scan'+'t'='SCANT'

Can you help me to learn more?

(Other definitions for scant that I've seen before include "Barely sufficient" , "Bare" , "Little" , "Insufficient, limited" , "Limited, inadequate" .)

I've seen this clue in The Times.

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