### Clue: Frontline caught in seething rain – such bliss! (7)
### Answer: NIRVANA 
 ### Explanation: Definition: such bliss
  VAN(frontline,forefront of eg. army, movement, progress) **contained in**(caught in) **anagram of**(seething) RAIN.
Answer: In some eastern religions, including Buddhism and Hinduism, the state of being free from suffering,being in such bliss.  The word in Sanskrit literally means "blowing out" – of the fires of greed, hatred and delusion.