Training some smart little monkeys (9)

I believe the answer is:

marmosets

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'little monkeys' is the definition.
'marmosets' can be an answer for 'monkeys' (marmoset is a kind of monkey). I'm not certain of the 'little' bit.

'training some smart' is the wordplay.
'training' indicates an anagram (to train can mean to grow something into a shape).
'some'+'smart'='somesmart'
'somesmart' is an anagram of 'MARMOSETS'.

Can you help me to learn more?

(Other definitions for marmosets that I've seen before include "Monkeys with silky coats and long tails" , "The monkeys could give Moms a rest" .)

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