One who cranes; a person or animal that stretches their neck to look at something.
From the verb 'crane' plus the agent suffix '-er' (meaning 'one who does'). A person or creature that performs the action of craning their neck.
'-er' is one of English's oldest and most productive suffixes—add it to almost any verb and you get someone who does that thing: runner, jumper, craner, even 'biter' (someone who bites), showing how creative and self-generating English word-formation is!
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