Imperial measure a company detailed (4)
I believe the answer is:
acre
'imperial measure' is the definition.
'acre' can be an answer for 'measure' (acre is a kind of measure). I am not certain of the 'imperial' bit.
'a company detailed' is the wordplay.
'company' becomes 'crew' (a group of people).
'detailed' means to remove the last letter (the word must be end-less or 'de-tailed').
'crew' with its final letter taken off is 'cre'.
'a'+'cre'='ACRE'
Can you help me to learn more?
(Other definitions for acre that I've seen before include "Area measure - Israeli port - Brazilian state" , "Israeli seaport" , "Care about the piece of land" , "Middle East port" , "Ancient city in Israel" .)