The term 'TATTLES (ON)' can be solved by the crossword solutions RATS (4 letters) and RATSOUT (7 letters). The term 'tattles (on)' is a phrase that means to gossip or reveal secrets about someone. It is usually used in a negative context, as it implies that the person is being untrustworthy and not keeping secrets. The two crossword solutions, RATS and RATSOUT, are both related to this phrase. RATS is a slang term for a person who reveals secrets, while RATSOUT is a phrase that means to expose someone's secrets.