The crossword solutions for the term 'ADDENDUM SECOND' are 'RIDER' (5 letters) and 'YER' (3 letters). An addendum is an additional document that is added to a contract or other legal document. A RIDER is an amendment or addition to a contract, bill, or other legal document. Yer is a contraction of the word 'YOUR'. Therefore, the crossword solutions for 'ADDENDUM SECOND' can be interpreted as an amendment or addition to a contract that belongs to the person being addressed.