Subtle language and communication difficulties are persistent and pervasive for autistic individuals without intellectual disability. They are thought to impact negatively on functionality, social interrelations and emotional well-being, although this relationship is under-explored in the literature. The personal accounts of autistic children could add valuable insight into how they experience subtle language and communication difficulties and what impact this has on their daily lives. In this study, 12 autistic children (9-14 years), without intellectual disability, were interviewed on this topic, using specially developed methods/materials to facilitate rich self-reporting. Results showed the children could provide detailed insight into their difficulties and the impact of these on key aspects of functionality (education and daily living) and social interrelations (including friendship building). They also demonstrated a potentially bi-directional relationship between subtle language and communication difficulties and negative emotions; with negative emotions limiting communicative competence and subtle linguistic difficulties leading to negative emotional responses. This study indicates the need for further investigation into the subtle difficulties experienced by autistic children without intellectual disability and its likely impact. Implications for clinical practice include the need for better identification of subtle language and communication difficulties and provision of appropriate therapeutic services which may help to ameliorate negative functional, social and emotional sequelae.