Lightweight Meg struggles to contain sheep (6)
I believe the answer is:
gramme
'lightweight' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'meg struggles to contain sheep' is the wordplay.
'struggles' indicates an anagram.
'to contain' means one lot of letters goes inside another.
'sheep' becomes 'ram' (male sheep).
'meg' with letters rearranged gives 'gme'.
'gme' going around 'ram' is 'GRAMME'.
Can you help me to learn more?
(Other definitions for gramme that I've seen before include "Metric unit of weight" , "Small unit of mass" , "Arm Meg (anag)" , "One thousandth of a kilogram (Fr)" , "Small weight" .)