Rub in talc freely — it can be soothing (9)
I believe the answer is:
lubricant
'be soothing' is the definition.
(thesaurus)
'rub in talc freely' is the wordplay.
'freely' indicates an anagram.
'rub'+'in'+'talc'='rubintalc'
'rubintalc' anagrammed gives 'LUBRICANT'.
'it can' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for lubricant that I've seen before include "it has a smoothing effect" , "What might have you well oiled" , "Oil or grease" , "E.g. oil" , "Eg, grease" .)