Member of la familia (3)
(Other definitions for padre that I've seen before include "Services' chaplain" , "Priest, chaplain" , "Military chaplain" , "Army serviceman?" , "Army chaplain" .)
'member of la familia' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for tia that I've seen is " ... Maria, coffee flavoured liqueur".)