Answer:
what little he begs
Explanation:
A noun clause is a subordinate or clause that cannot stand on its own in a sentence and takes the place of a noun.
It can function as:
- the object of a participle
- the object of a preposition
- the object of an infinitive
- a complement and many more...
Therefore, from the given sentence, "He lives on what little he begs", the noun clause is what little he begs
