Agitated speculator distributes shares (7,3)

I believe the answer is:

parcels out

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

'distributes shares' is the definition.
'parcels out' can be an answer for 'distributes' ('parcel out' can be a synonym of 'distribute'). I'm not sure about the 'shares' bit.

'agitated speculator' is the wordplay.
'agitated' is an anagram indicator.
'speculator' anagrammed gives 'PARCELS OUT'.

Can you help me to learn more?

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

Want a hint initially instead of a full solution? Install my app