Skip on one unit, finally grappling Papuan language (3,5)
I believe the answer is:
tok pisin
'finally grappling papuan language' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'skip on one unit' is the wordplay.
I cannot really see how this works, but
an anagram of 'skip' is 'kpis' which is present in the answer.
'on' could be 'to' and 'to' is found in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'unit' could be 'n' (N is an example) and 'n' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for tok pisin that I've seen is " words in Papua New Guinea".)