Answer: ipcress

AnswerCrossword Clue
IPCRESSWord in a Len Deighton title
IPCRESS"The .. File": Deighton novel
IPCRESSLen Deighton's "The ... File"
IPCRESS"The ... File": Deighton spy novel
IPCRESS"The .. File" (Deighton novel)
IPCRESS"The ... File," Michael Caine movie
IPCRESSDeighton's "The ... File"
IPCRESS"The ... File," 1965 film