The all round starting price, in this case (6)

I believe the answer is:

sphere

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

'the all round' is the definition.
'sphere' can be an answer for 'round' (thesaurus). I am not certain of the 'the all' bit.

'starting price in this case' is the wordplay.
'starting price' becomes 'sp' (abbreviation in betting).
'in this case' becomes 'here' (I've seen this in another clue).
'sp'+'here'='SPHERE'

Can you help me to learn more?

(Other definitions for sphere that I've seen before include "Province - range" , "Perfectly round solid geometric figure" , "Ball shape" , "Globe or ball" , "Territory" .)

I've seen this clue in the Evening Standard.

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