Allotted portion (5)
'allotted portion' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for share that I've seen before include "Part, portion" , "Portion; plough blade" , "Cutting blade" , "Divide out, apportion" , "hand pieces out" .)
(Other definitions for allowance that I've seen before include "Ration, quota" , "Call on with awe for pocket-money or other grant" , "Permissible difference or amount" , "Money granted for a purpose" , "Portion, ration" .)
'allotted portion' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ration that I've seen before include "Fixed amount allotted" , "Food allowance" , "One's allotted portion" , "Limit to a fixed amount, be sparing" , "Parcel out scarce food, say" .)