A snuggle with acquaintances primarily wagging tongues (9)
I believe the answer is:
languages
'tongues' is the definition.
(I've seen this before)
'a snuggle with acquaintances primarily wagging' is the wordplay.
'with' means one lot of letters go next to another.
'primarily' indicates taking the first letters.
'wagging' indicates an anagram (letters swing or wag around).
The initial letter of 'acquaintances' is 'a'.
'a'+'snuggle'='asnuggle'
'asnuggle' put after 'a' is 'aasnuggle'.
'aasnuggle' with letters rearranged gives 'LANGUAGES'.
(Other definitions for languages that I've seen before include "Formalised systems of communication" , "Tongues, vernaculars" , "Systems of words in different areas" .)