CONFORMANCE
My grandad was doing the same crossword!
colic
civic
sadisticsarcasticsardonicsatanicscenicscientificshellacsimplisticseismographicskepticsociopathicsporadicsoporificspasticspecificstoicstaticsumacsystematicsyllabicsymbolicsymphonicsystemic
Cyan and Crimson.
Alec
caloriccausticceramicclassiccoloniccryptic
Five letter words starting with C and ending with X are calyx and codex.
havoc
stoic
bucolic
A four letter word beginning with C and ending with X is crux.
By dictionary meaning there isn't one. There is one word that is close which is 'Credo' Meaning (from dictionary) 'A statement of the beliefs or aims that guide someone's actions.'