Perceptible by touch (8)
(Other definitions for tangible that I've seen before include "Solid, can be touched" , "Real, solid" , "Real, definite" , "Clear and definite, can be touched" , "Material" .)
'perceptible by touch' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tactile that I've seen before include "Hands-on" , "Cattle I find with sense of touch" , "Tangible - of touch" , "Given to touching" , "Lattice being sensitive to touch" .)