Loaded p-pipe into brigantines, amidships? (8)
I believe the answer is:
affluent
'loaded' is the definition.
(loaded can mean very rich)
'p-pipe into brigantines amidships?' is the wordplay.
'p-pipe' becomes 'f-flue' ('flue' said with a stutter like 'pipe' was; flue pipe is a kind of pipe).
'into' means one lot of letters goes inside another.
'amidships?' means to look at the middle letters.
The central letters of 'brigantines' are 'ant'.
'fflue' placed inside 'ant' is 'AFFLUENT'.
(Other definitions for affluent that I've seen before include "Rich; flowing freely" , "Wealthy - abundant" , "comfortable" , "Well-to-do, wealthy" , "Wealthy, rich" .)