Related Clues:

• Departure, of a sort
• Deviation from the standard
• Basic process of genetics
• It's not normal
• Outlier
• Out-of-line result
• Irregular result
• Abnormally shunning BR line? It turns up irregularly
• Special case of a number reduced by 50 within month
• Old man almost involved in some irregularity
• Something not normal
• First of results excluded from a standard year, as this?
• Atypical behaviour, to find oneself inside island church
• Unexpected result from a standard year - that's not right
• Something deviating from the normal