Puritan pressure to get equipment (4)
I believe the answer is:
prig
'puritan' is the definition.
(thesaurus)
'pressure to get equipment' is the wordplay.
'pressure' becomes 'p' (abbreviation).
'to get' says to put letters next to each other.
'equipment' becomes 'rig' (rig is a kind of equipment).
'p'+'rig'='PRIG'
(Other definitions for prig that I've seen before include "Snooty type?" , "Puritan" , "Self-righteous person - get a grip" , "Old maid" , "Straight-laced person" .)