Friend, oddly prim, with appendages (5)

I believe the answer is:

palpi

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'with appendages' is the definition.
The definition suggests a singular noun which matches the answer.

'friend oddly prim' is the wordplay.
'friend' becomes 'pal' (pal can mean a friend).
'oddly' means one should take alternating letters (letters in the odd-numbered positions are used).
The alternate letters of 'prim' are 'pi'.
'pal'+'pi'='PALPI'

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I've seen this clue in the Sydney Morning Herald.

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