Pythagoras began here as most detailed crackpot? (5)
I believe the answer is:
samos
'pythagoras began here' is the definition.
The definition suggests a singular noun which matches the answer.
'as most detailed crackpot?' is the wordplay.
'detailed' means to remove the last letter (the word must be end-less or 'de-tailed').
'crackpot?' indicates anagramming the letters (I've seen this in other clues).
'as'+'most'='asmost'
'asmost' with its last letter taken away is 'asmos'.
'asmos' anagrammed gives 'SAMOS'.
Can you help me to learn more?
(Other definitions for samos that I've seen before include "Greek island?" , "Aegean Sea island" , "birthplace of Pythagoras" , "somewhere in the Aegean" .)