Eject leaders of only union seeking terms (4)

I believe the answer is:

oust

'eject' is the definition.
(thesaurus)

'leaders of only union seeking terms' is the wordplay.
'leaders of' indicates taking the first letters.
The initial letters of 'only union seeking terms' is 'OUST'.

(Other definitions for oust that I've seen before include "Remove or reject from position" , "Send packing" , "Expel (from a place)" , "Force from office" , "Give marching orders" .)

I've seen this clue in The Telegraph.

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