In pub the Spanish notice flawed political process (5,8)
I believe the answer is:
local election
'political process' is the definition.
The definition suggests a singular noun which matches the answer.
'in pub the spanish notice flawed' is the wordplay.
'in pub' becomes 'local' (I can't explain this - if you can you should give a lot more credence to this answer).
'the spanish' becomes 'el' ('the' in Spanish).
'flawed' indicates an anagram (I've seen this in other clues).
'notice' is an anagram of 'ection'.
'local'+'el'+'ection'='LOCAL ELECTION'
Can you help me to learn more?
(Another definition for local election that I've seen is " Choosing of district councillors etc".)