### Clue: 1917 18 across where infant lying, funny feeling justified, one certainly admits (10,7)
### Answer: COTTINGLEY FAIRIES 
 ### Explanation: Definition: 1917 18 across
 COT(a small bed in which an infant lies) + TINGLE(a funny feeling/a slight prickling or stinging sensation that one sometimes feels) + {[FAIR(justified/proper) + I(Roman numeral for "one")] **contained in**(… admits) YES!(certainly!/agreed!)}.