Hostile seizure of vest, for one (10)
I believe the answer is:
occupation
'hostile seizure' is the definition.
'occupation' can be an answer for 'seizure' (thesaurus). I'm not sure about the 'hostile' bit.
'of vest for one' is the wordplay.
I cannot really see how this works, but
'of' could be 'o' and 'o' is found in the answer.
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
'for' could be 'to' (eg both can mean 'in the opinion of') and 'to' is found within the remaining letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for occupation that I've seen before include "end of invasion?" , "Job, profession" , "period of residency" , "Doctor, for instance" , "Business - residence" .)