Wearisomely study oil and energy fiasco (9)
I believe the answer is:
tediously
'wearisomely' is the definition.
Both the answer and definition are adverbs.
Maybe there's an association between them I don't understand?
'study oil and energy fiasco' is the wordplay.
'and' means one lot of letters go next to another.
'energy' becomes 'e' (physics symbol as in E=mc2).
'fiasco' indicates anagramming the letters.
'study'+'oil'='studyoil'
'studyoil' after 'e' is 'estudyoil'.
'estudyoil' anagrammed gives 'TEDIOUSLY'.
Can you help me to learn more?
(Other definitions for tediously that I've seen before include "in a way sleep-inducing?" , "in a laborious way" .)