A day married - one has time to confess! (5)
I believe the answer is:
admit
'confess' is the definition.
(thesaurus)
'a day married one has time' is the wordplay.
'a day' becomes 'ad' (I've seen this in other clues**).
'married' becomes 'm'.
'one' becomes 'i' (Roman numeral).
'has' means one lot of letters go next to another.
'time' becomes 't'.
'ad'+'m'+'i'+'t'='ADMIT'
'to' acts as a link.
(Other definitions for admit that I've seen before include "Disclose" , "receive" , "Grant entry to" , "Recognise" , "Take on" .)