Deer of exceptional bulk originally in common crowd (7)

I believe the answer is:

roebuck

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'deer' is the definition.
(roebuck is a kind of deer)

'of exceptional bulk originally in common crowd' is the wordplay.
'originally' suggests taking the first letters.
'in' indicates putting letters inside.
'common crowd' becomes 'ruck' (I've seen this in other clues. I am not sure about the 'common' bit.).
The first letters of 'of exceptional bulk' is 'oeb'.
'oeb' put within 'ruck' is 'ROEBUCK'.

Can you help me to learn more?

(Other definitions for roebuck that I've seen before include "Stag" , "Small male deer" , "Providing venison" , "reddish-brown jumper" , "Being wild" .)

I've seen this clue in The Times.

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