Detailed insect's line of travel (5)

I believe the answer is:

locus

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'line of travel' is the definition.
'locus' can be an answer for 'line' (I've seen this before). I am unsure of the 'of travel' bit.

'detailed insect's' is the wordplay.
'detailed' means to remove the last letter (the word must be end-less or 'de-tailed').
'insect' becomes 'locust' (locust is a kind of insect).
'locust' with its last letter taken off is 'LOCUS'.

Can you help me to learn more?

(Other definitions for locus that I've seen before include "Spot" , "line" , "Venue" , "Particular position (of something)" , "Particular point" .)

I've seen this clue in The Independent.

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