Announces cramps; oil massaged (9)
I believe the answer is:
proclaims
'announces' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their -s form.
Perhaps you can see an association between them that I can't see?
'cramps oil massaged' is the wordplay.
'massaged' is an anagram indicator (I've seen 'massaging' mean this ('massage' can mean to manipulate or distort)).
'cramps'+'oil'='crampsoil'
'crampsoil' anagrammed gives 'PROCLAIMS'.
Can you help me to learn more?
(Other definitions for proclaims that I've seen before include "Announces officially" , "Advertises" .)