Crossword Genius

Trekker's blessing for start of route, or developing plans for diversion (4,4,3,7)

Ross

I believe the answer is:

live long and prosper

'trekker's blessing' is the definition.
(phrase in Star Trek)

'start of route or developing plans for diversion' is the wordplay.
'start of' suggests taking the first letters.
'for diversion' indicates anagramming the letters (letters diverted elsewhere).
The initial letter of 'route' is 'r'.
'r'+'or'+'developing'+'plans'='rordevelopingplans'
'rordevelopingplans' with letters rearranged gives 'LIVE LONG AND PROSPER'.

'for' is the link.

I've seen this clue in The Guardian.
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