### Clue: Bare bum finally administered with heartless slap outside seed store (5,4)
### Answer: SPERM BANK 
 ### Explanation: Definition: seed store
 **Anagram of**(… administered) [BARE + **the last letter of**(… finally) "bum"] **contained in**(with … outside) "spank"(a slap on the buttocks) **minus its central letter**(heartless …).
Picture the scene outside (inside?) a sperm bank.