Distribute a toll, or issue shares (5)

I believe the answer is:

allot

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'issue shares' is the definition.
'allot' can be an answer for 'issue' (thesaurus). I am unsure of the 'shares' bit.

'distribute a toll' is the wordplay.
'distribute' is an anagram indicator (I've seen this in other clues).
'a'+'toll'='atoll'
'atoll' is an anagram of 'ALLOT'.

'or' is the link.

Can you help me to learn more?

(Other definitions for allot that I've seen before include "Distribute, give as share" , "Assign (to someone)" , "Ration" , "deal" , "Designate; sounds like much" .)

I've seen this clue in the Evening Standard.

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