### Clue: Cross into Nigeria with FT as arranged for Barclays 1 (4,6)
### Answer: RATE FIXING 
 ### Explanation: Definition: Barclays 1
 X(a Cross) **contained in**(into) **anagram of**(as arranged) [Nigeria **plus**(with) FT].
Answer: The "fiddle"(answer to 1across) that Barclays did on inter-bank interest, or lending, rates.