Dimension of centimetre in wall of heart (4)

I believe the answer is:

time

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'dimension' is the definition.
(time is a kind of dimension)

'centimetre in wall of heart' is the wordplay.
'centimetre in' becomes 'tim' (I can't justify this - if you can you should give a lot more credence to this answer).
'wall' becomes 'corbiegable' (corbie gable is a kind of wall).
'of heart' means to look at the middle letters (I've seen 'heart' mean this).
The middle letter of 'corbiegable' is 'e'.
'tim'+'e'='TIME'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for time that I've seen before include "Age" , "The father of Truth, presumably" , "Rhythm" , "Prison sentence; tempo" , "It's done in prison" .)

I've seen this clue in The Telegraph.

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