Different questions can be asked about a single expression. كَلِمَةٌ فَصِيحَةٌ evaluates a word; كَلَامٌ فَصِيحٌ also evaluates the composition; كَاتِبٌ فَصِيحٌ concerns a writer's competence.
Balagha is attributed to كَلَامٌ بَلِيغٌ and مُتَكَلِّمٌ بَلِيغٌ, not to an isolated word in this technical discussion. That distribution cannot be reduced solely to the condition of matching the situation; established usage and differences between definitions also matter.
Remember: three applications of fasaha, two of balagha, and three primary defects relevant to the fasaha of an individual word. The next lesson examines those defects through detailed cases.