Front page has concerning message (7)
I believe the answer is:
pretext
'front' is the definition.
(thesaurus)
'page has concerning message' is the wordplay.
'page' becomes 'p'.
'has' means one lot of letters go next to another.
'concerning' becomes 're'.
'message' becomes 'text' (I've seen this before**).
'p'+'re'+'text'='PRETEXT'
(Other definitions for pretext that I've seen before include "Specious excuse" , "Ostensible reason" , "Fictitious reason in order to conceal the real one" , "Alleged reason" , "Stalking-horse" .)