Infatuated former nurse holds hand (7)
I believe the answer is:
smitten
'infatuated' is the definition.
(synonyms)
'former nurse holds hand' is the wordplay.
'former nurse' becomes 'sen' (I've seen this in other clues).
'holds' is an insertion indicator.
'hand' becomes 'mitt' (synonyms).
'sen' going around 'mitt' is 'SMITTEN'.
(Other definitions for smitten that I've seen before include "Much taken by" , "Captivated" , "Deeply in love" , "Hit (by remorse, love)" , "Struck (by love?)" .)