A vessel for storing and one for piping oil? (6)
I believe the answer is:
canvas
'oil?' is the definition.
(thesaurus)
'a vessel for storing and one for piping' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'an' and 'an' is found within the answer.
'vessel' could be 'vas' (synonyms) and 'vas' is present in the answer.
A single letter 'c' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for canvas that I've seen before include "End of a racing boat; coarse cloth" , "Strong coarse cloth" , "Material for tents, etc" , "Cloth for painting etc" , "Heavy, closely-woven fabric" .)