The crossword solution for the term 'MORE THAN ACHE' is THROB, which is a five-letter word. The term 'THROB' is used to describe a strong, pulsating sensation or a feeling of intense emotion. It is often used to describe physical pain, such as a headache, but it can also be used to describe an emotional state, such as a feeling of love or longing. In this case, the term 'more than ache' implies that the sensation or emotion is more intense than a simple ache.