Pair set off into the wild, not being the sharpest (10)
I believe the answer is:
slowwitted
'pair set' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives can sometimes define each other.
'off into the wild not being the sharpest' is the wordplay.
I cannot really understand how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'not' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'being' could be 'wit' (wit is a kind of being) and 'wit' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?