Weirdly porcine, old cheese from sheep (8)
I believe the answer is:
pecorino
'cheese from sheep' is the definition.
'pecorino' can be an answer for 'cheese' (I've seen this before). I also know that 'sheep' relates to this answer.
'weirdly porcine old' is the wordplay.
'weirdly' is an anagram indicator.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'porcine' anagrammed gives 'pecorin'.
'pecorin'+'o'='PECORINO'
Can you help me to learn more?
(Other definitions for pecorino that I've seen before include "Italian sheep's cheese" , "Italian cheese made from ewe's milk" , "Hard cheese!" .)