The crossword solution for the term 'DOING WELL (AT)' is ADEPT, which is a 5 letter word. ADEPT means to be highly skilled or proficient at something. It can also refer to someone who is experienced and knowledgeable in a particular field. Therefore, the phrase 'DOING WELL (AT)' can be interpreted as being highly skilled or proficient at something, or having experience and knowledge in a particular field.