### Clue: Send up husband and father beginning to believe extravagant nonsense (9)
### Answer: GIBBERISH 
 ### Explanation: Definition: nonsense
 **Reversal of**(Send up, in a down clue) [ H(abbrev. for "husband") **plus**(and) SIRE(a father) + **1st letter of**(beginning to) "believe" + BIG(extravagant/excessive) ].