Engineers attack renovation of vessel, say (5)
I believe the answer is:
refit
'renovation of vessel say' is the definition.
'refit' can be an answer for 'renovation'. I am unsure of the 'of vessel say' bit.
'engineers attack' is the wordplay.
'engineers' becomes 're' (Royal Engineers).
'attack' becomes 'fit' (fit is a kind of attack).
're'+'fit'='REFIT'
Can you help me to learn more?
(Other definitions for refit that I've seen before include "Mend" , "Equip by repairing or replacing parts" , "Restoration and repair of equipment etc" , "Replace equipment in (a ship, etc.)" , "Replace ship's equipment" .)