Message about welcoming uniform consistency (7)
I believe the answer is:
texture
'consistency' is the definition.
(consistency can mean something's texture or feel)
'message about welcoming uniform' is the wordplay.
'message' becomes 'text' (text message).
'about' becomes 're' ('re' means regarding or about).
'welcoming' is an insertion indicator (in sense of 'inviting in').
'uniform' becomes 'U' (phonetic alphabet: alpha, bravo, charlie etc.).
'text'+'re'='textre'
'textre' going around 'u' is 'TEXTURE'.
(Other definitions for texture that I've seen before include "Surface grain" , "The way a fabric, say, feels to the touch" , "Fabric's feeling to the touch" , "Quality or feel of material" , "Consistency" .)