Detectives turn up? Make like Lord Lucan! (9)

I believe the answer is:

disappear

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'detectives turn up? make like lord lucan' is the definition.
I can't tell whether this definition defines the answer.

'detectives turn up?' is the wordplay.
'detectives' becomes 'dis' (Detective Inspectors, DIs).
'turn up?' becomes 'appear' (turning up is a kind of appearing).
'dis'+'appear'='DISAPPEAR'

Can you help me to learn more?

(Other definitions for disappear that I've seen before include "Vanish, cease to be visible" , "Do a bunk" , "Leave" , "Melt away" , "suddenly depart" .)

I've seen this clue in The Independent.

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