Going crazy with new measure of drink (6)
I believe the answer is:
noggin
'drink' is the definition.
(drink measurement, typically a quarter of a pint)
'going crazy with new measure' is the wordplay.
'crazy' indicates an anagram.
'with' is an insertion indicator.
'new measure' becomes 'n' (N is an example. I am not sure about the 'new' bit.**).
'going' anagrammed gives 'oggin'.
'oggin' going around 'n' is 'NOGGIN'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for noggin that I've seen before include "Measure of alcohol, about a quarter pint" , "Small measure of liquid" , "Peg" , "alcoholic drink?" , "Human head -- small drink" .)