Military construction engineers provided with misgivings (7)
I believe the answer is:
redoubt
'military construction' is the definition.
'redoubt' can be an answer for 'construction' (redoubt is a kind of construction). I am unsure of the 'military' bit.
'engineers provided with misgivings' is the wordplay.
'engineers' becomes 're' (Royal Engineers).
'provided with' is a charade indicator (letters next to each other).
'misgivings' becomes 'doubt' (I've seen this in another clue).
're'+'doubt'='REDOUBT'
Can you help me to learn more?
(Other definitions for redoubt that I've seen before include "Defensive outwork" , "Entrenched stronghold" , "Temporary or outward fortification" , "Obtrude in kind of military fieldwork" , "Temporary military fortification" .)