### Clue: Leave rag-ends, keeping what's modish? (7)
### Answer: AVERAGE 
 ### Explanation: Definition: what's modish
 **Hidden in**(…, keeping) "Leave rag-ends ".
Cryptic defn: Mode(in statistics, the most frequently occurring value in a set of quantities, and a value that is representative of a set of quantities). -ish(suffix to represent a nearness to;approximately and/or having the characteristics of). Hence "modish".
Answer: The arithmetic mean of a set of quantities, which could approximate the mode, and like the latter, be representative of a set of quantities.