Having dried out the interior, shilly-shallied (8)
I believe the answer is:
dithered
'having dried out the interior shilly-shallied' is the definition.
I can't judge whether this definition defines the answer.
'dried out the interior shilly-shallied' is the wordplay.
'dried' becomes 'dire' (I am not sure about this - if you are sure you should believe this answer much more).
'out' is an insertion indicator.
'interior' indicates the central letters.
'shilly-shallied' becomes 'dawdled' (I've seen this in another clue).
The middle of 'dawdled' is 'd'.
'dire' going around 'the' is 'dithere'.
'dithere'+'d'='DITHERED'
Can you help me to learn more?
(Other definitions for dithered that I've seen before include "Hesitated" , "Vacillated, was indecisive" , "Vacillated indecisively" , "Was hesitant" , "Was undecided" .)