### Clue: One virtually huge slating could be a form of this? (6-7)
### Answer: TONGUE-LASHING 
 ### Explanation: Definition: a form of this
 **Anagram of**(… could be) [ "One " **minus its last letter**(… virtually) + HUGE SLATING].
Defn: I take it that "this" refers to "slating", since the answer is "a $$form$$ of slating".