The term 'What do we have here?' can be solved by the following crossword solutions: HELLO (5 letters), HULLO (5 letters), OHO (3 letters), LOANDBEHOLD (11 letters). These words are all interjections that are used to express surprise or excitement. HELLO and HULLO are informal greetings, while OHO is an exclamation of surprise or realization. LOANDBEHOLD is a phrase used to emphasize the sudden appearance of something unexpected.