Allow real change in a better system (8)

I believe the answer is:

tolerate

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'allow' is the definition.
(I know that allow can be written as tolerate)

'real change in a better system' is the wordplay.
'change' indicates an anagram.
'in' is an insertion indicator.
'a better system' becomes 'tote' (I have seen 'System of betting' mean 'tote' so perhaps 'system' could also mean 'tote'. I am not sure about the 'better' bit.).
'real' with letters rearranged gives 'lera'.
'lera' placed within 'tote' is 'TOLERATE'.

Can you help me to learn more?

(Other definitions for tolerate that I've seen before include "Abide" , "Stomach" , "Be indulgent" , "Turn a blind eye to" , "show forbearance" .)

I've seen this clue in The Guardian and The Globe and Mail.

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