Figure out going up lane, most of what is characteristic of the underground (8)
I believe the answer is:
infernal
'what is characteristic of the underground' is the definition.
I can't judge whether this definition defines the answer.
'figure out going up lane most' is the wordplay.
'figure out' becomes 'infer' (inferring is a kind of figuring out).
'going up' is a reversal indicator.
'most' means to remove the last letter.
'lane' with its final letter taken away is 'lan'.
'lan' written backwards gives 'nal'.
'infer'+'nal'='INFERNAL'
'of' is the link.
Can you help me to learn more?
(Other definitions for infernal that I've seen before include "Hell-like" , "Irritating and tiresome or relating to hell" , "Damned, diabolical" , "To do with hell and its fires" , "Of hell, or tiresome like a nuisance" .)