Reportedly what a roofer may do that's perceptible by touch (7)
I believe the answer is:
tactile
'reportedly what a roofer' is the definition.
I can't tell whether this defines the answer.
'do that's perceptible by touch' is the wordplay.
I cannot really see how this works, but
'do' could be 'act' (I've seen this before) and 'act' is found in the answer.
The remaining letters 'tile' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'may' is the link.
Can you help me to learn more?
(Other definitions for tactile that I've seen before include "be felt" , "Touchy-feely" , "Given to touching" , "Touchy" , "Hands-on" .)