Texan oilman embracing the poor old priest (6)
I believe the answer is:
jethro
'priest' is the definition.
(I know this)
'texan oilman embracing the poor old' is the wordplay.
'texan oilman' becomes 'JR' (JR Ewing, character from the US soap Dallas).
'embracing' indicates putting letters inside.
'poor' indicates an anagram.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'the' is an anagram of 'eth'.
'jr' placed around 'eth' is 'jethr'.
'jethr'+'o'='JETHRO'
(Other definitions for jethro that I've seen before include "Priest" , "- Tull, seventeenth to eighteenth century English agriculturist" , "--- Larkin (The Archers)" , "-- Tull, English agronomist" , "- Tull, seed drill man" .)