StringReplace[#,RegularExpression[" id=".*""] -> ""] &["nilo id="jaap" de roock"]

data = <|parser -> "code"|>;

"jaap" <> " en " <> "wim"
"jaap en wim"

ass = <|"parser" -> ""jaap"<>" en "<> "wim""|>
<|"parser" -> "jaap"<>" en "<> "wim"|>

ToExpression[ass["parser"]]
"jaap en wim"

ass = <|"parser" -> ""|>

StringReplace[#,RegularExpression[" id=".*""] -> ""] &["nilo id="jaap" de roock"]