Insect whose males bear a pair of conspicuous mandibles (4,6)

I believe the answer is:

stag beetle

(Other definitions for stag beetle that I've seen before include "Insect with antler-like jaws" , "something some folk find creepy" , "Horny little creature" , "Large insect with branched mandibles" , "Six-footer" .)

I've seen this clue in The Times.

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