A table constructed to hold fourth case (8)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

An insertion of IV in (A TABLE)* The insertion indicator is ‘to hold’ and the anagrind is ‘constructed’. I hesitated briefly over IV for ‘fourth’, but of course it’s kings and queens, as in George IV. ABLATIVE is a grammatical ‘case’: it doesn’t exist in modern English and if you’ve heard of it at all it’s most likely through Latin at school, where it was traditionally the sixth case, expressing ‘by’, ‘from’ or ‘with’. It does exist in some modern languages, including Turkish, Finnish and Hungarian. That’s enough grammar for this morning, I think.