### Clue: Get gripes regularly content's missing from supermarket with most small branches (9)
### Answer: TWIGGIEST 
 ### Explanation: Definition: with most small branches
 TWIG(get/to understand or realise something) + **1st, 3rd and 5th letters of**(… regularly) "gripes" + **all middle letters deleted from**(content's missing from) "supermarket".