Express dissent and agitate individual at outbuilding around midday (5,4,4)
I believe the answer is:
shake ones head
'outbuilding around midday' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'express dissent and agitate individual' is the wordplay.
'express dissent' becomes 'shead' (I am not sure about this - if you are sure you should believe this answer much more).
'and' means one lot of letters go next to another.
'agitate' becomes 'shake' (synonyms).
'individual' becomes 'one' (an individual is one person).
'shake'+'one'='shakeone'
'shead' after 'shakeone' is 'SHAKE ONES HEAD'.
'at' acts as a link.
Can you help me to learn more?
(Other definitions for shake ones head that I've seen before include "Signify disagreement" , "Signify dissent" , "Show disapproval" , "Make a gesture of negation" .)