noun, noun or participle which takes 'suru'
Noun form of 説き明かす (to explain in detail). Often used in formal or written contexts. Can also be used as a suru-verb (説き明かしする).
See also: 説明 (せつめい)
彼の説き明かしはとても分かりやすかった。
His explanation was very easy to understand.
この問題について説き明かししてください。
Please give an explanation about this problem.